Netflix’s Big Mouth is an adult animated comedy that explores puberty, friendships, relationships, embarrassment, identity, and the confusing transition from childhood to adolescence. Created by Nick Kroll, Andrew Goldberg, Mark Levin, and Jennifer Flackett, the series stands out for its combination of relatable teenage experiences and outrageous imaginary creatures.
The Big Mouth characters include middle school students, parents, teachers, hormone monsters, shame-related creatures, and other supernatural representations of human emotions. Each contributes something different to the show’s unusual approach to growing up.
Nick Birch, Andrew Glouberman, Jessi Glaser, and Missy Foreman-Greenwald form part of the central group, while Maurice, Connie, and other imaginary beings bring the characters’ internal struggles to life.
This guide covers 45 notable characters from the original Netflix series, including their personalities, appearances, relationships, narrative roles, and memorable characteristics. It also explains how the show’s human and supernatural characters connect.
Big Mouth Characters At A Glance
The following directory provides a quick introduction to the 45 characters covered in this guide.
| Character | Role | Known For |
|---|---|---|
| Nick Birch | Main protagonist | Puberty and insecurity |
| Andrew Glouberman | Main protagonist | Anxiety and awkwardness |
| Jessi Glaser | Main character | Independence and emotional struggles |
| Missy Foreman-Greenwald | Main character | Intelligence and self-discovery |
| Jay Bilzerian | Main character | Wild behavior and complicated family life |
| Matthew MacDell | Main character | Sarcasm and self-expression |
| Maurice | Hormone Monster | Guiding Andrew through puberty |
| Connie | Hormone Monstress | Confidence and emotional intensity |
| Rick | Hormone Monster | Strange, unconventional advice |
| Tyler | Hormone Monster | Immature behavior |
| Mona | Hormone Monstress | Supporting Missy’s development |
| Rochelle | Lovebug | Romantic feelings |
| Walter | Lovebug | Love and emotional attachment |
| Sonya | Lovebug | Romantic guidance |
| Tito | Anxiety Mosquito | Worry and nervousness |
| Kitty | Depression Kitty | Sadness and withdrawal |
| Shame Wizard | Shame creature | Embarrassment and guilt |
| Gratitoad | Gratitude creature | Appreciation and perspective |
| Ambition Gremlin | Ambition creature | Achievement and motivation |
| Logic Rock | Logic creature | Rational thinking |
| Lola Skumpy | Student | Dramatic personality |
| Devin LeSeven | Student | Social status and popularity |
| Devon | Student | Social relationships |
| Gina Alvarez | Student | Confidence and self-respect |
| Ali Wong | Student | Sexual identity and openness |
| Caleb | Student | Literal thinking and friendship |
| Elijah | Student | Faith and personal boundaries |
| Charles Lu | Student | Confidence and romantic interests |
| Leah Birch | Nick’s sister | Teenage independence |
| Judd Birch | Nick’s brother | Rebellious personality |
| Diane Birch | Nick’s mother | Affectionate parenting |
| Elliot Birch | Nick’s father | Emotional openness |
| Marty Glouberman | Andrew’s father | Strict and anxious parenting |
| Barbara Glouberman | Andrew’s mother | Family support |
| Shannon Glaser | Jessi’s mother | Family changes |
| Greg Glaser | Jessi’s father | Laid-back parenting |
| Cyrus Foreman-Greenwald | Missy’s father | Supportive parenting |
| Monica Foreman-Greenwald | Missy’s mother | Family values |
| Coach Steve | School employee | Social awkwardness |
| Mr. Lizer | Teacher | Inappropriate conduct |
| Principal Barron | School principal | School authority |
| Duke Ellington | Ghost | Historical humor and advice |
| Featuring Ludacris | Jay’s dog | Talking-animal comedy |
| Cherry Marashino | Student | School relationships |
| Milk | Student | Unusual stories and humor |
Understanding The Big Mouth Universe
Big Mouth premiered on Netflix in 2017 and concluded with its eighth season in 2025. Its central setting is a suburban American community where students navigate school, friendships, family expectations, and puberty.
The series frequently switches between ordinary situations and surreal representations of characters’ thoughts and emotions.
Human Characters
The human cast includes teenagers, parents, teachers, siblings, and classmates. Their experiences provide the foundation for the show’s storytelling.
The main teenagers deal with growing independence, insecurity, romantic attraction, social expectations, and changing relationships.
Hormone Monsters And Emotional Creatures
Hormone monsters represent the physical and emotional intensity of puberty. Other creatures personify feelings such as anxiety, depression, shame, love, gratitude, and ambition.
These beings are not ordinary human characters. They dramatize internal experiences, often giving exaggerated advice or influencing how the teenagers interpret their feelings.
School And Family Relationships
The teenagers’ families and classmates play equally important roles. Parental expectations, sibling relationships, peer pressure, and classroom interactions create many of the situations that drive the story.
Understanding these connections makes the characters’ behavior easier to interpret.
Main Big Mouth Characters
The central teenagers are the emotional foundation of the series. Their friendships and individual experiences give the show its continuing storylines.
1. Nick Birch
| Detail | Information |
|---|---|
| Full Name | Nicholas Birch |
| Role | Main protagonist |
| Family | Diane, Elliot, Leah, and Judd Birch |
| Best Friend | Andrew Glouberman |
| Voice Actor | Nick Kroll |
Nick Birch is one of the show’s principal characters. He is a middle school student trying to understand puberty while comparing himself with friends who seem to be developing faster.
His appearance is relatively youthful, with brown hair and a smaller build than several classmates. This becomes part of his insecurity about growing up.
Nick frequently worries about popularity, romantic relationships, and whether other people respect him. Although he wants to appear confident, his decisions often reveal uncertainty and jealousy.
His friendship with Andrew is central to the series. Their different experiences with puberty create misunderstandings, competition, and emotional tension.
Nick also comes from an affectionate family. His parents’ unusually open approach to relationships sometimes embarrasses him, while his older siblings offer contrasting examples of adolescence and adulthood.
His storyline demonstrates how comparing personal development with other people’s experiences can affect confidence and friendship.
2. Andrew Glouberman
| Detail | Information |
|---|---|
| Full Name | Andrew Glouberman |
| Role | Main protagonist |
| Family | Marty and Barbara Glouberman |
| Best Friend | Nick Birch |
| Hormone Monster | Maurice |
| Voice Actor | John Mulaney |
Andrew Glouberman is Nick’s longtime best friend and another central figure in the series.
Recognizable by his glasses and curly hair, Andrew experiences puberty with considerable anxiety and confusion. His intense emotional reactions frequently produce awkward situations.
Maurice, his Hormone Monster, encourages Andrew’s impulses rather than consistently helping him make responsible decisions.
Andrew’s personality combines nervousness, obsessive thinking, loyalty, and occasional selfishness. His romantic feelings can become overwhelming, particularly when he struggles to distinguish attraction from emotional attachment.
His relationship with his father, Marty, adds another layer to his character. Marty’s critical personality contributes to Andrew’s insecurity, even though their relationship also contains moments of affection.
Andrew is important because his experiences illustrate how adolescence can combine curiosity, fear, embarrassment, and a desire for acceptance.
3. Jessi Glaser
| Detail | Information |
|---|---|
| Full Name | Jessica Glaser |
| Role | Main character |
| Parents | Shannon and Greg Glaser |
| Hormone Monstress | Connie |
| Voice Actor | Jessi Klein |
Jessi Glaser is intelligent, outspoken, emotionally sensitive, and often more willing than her classmates to challenge expectations.
Her recognizable appearance includes reddish hair and freckles. She frequently expresses frustration with the confusing changes happening in her life.
Jessi’s experiences involve puberty, friendship, family separation, depression, and personal identity.
Her parents’ changing relationship affects her sense of stability. As family circumstances become more complicated, Jessi sometimes struggles to communicate her feelings constructively.
Connie serves as her Hormone Monstress during important portions of the series, encouraging emotional expression and helping dramatize Jessi’s internal conflicts.
Jessi’s friendship with Missy is particularly significant. Their personalities differ, but both must navigate social pressure and changing expectations.
Through Jessi, the show examines how personal independence can coexist with vulnerability and the need for emotional support.
4. Missy Foreman-Greenwald
| Detail | Information |
|---|---|
| Full Name | Missy Foreman-Greenwald |
| Role | Main character |
| Parents | Cyrus and Monica Foreman-Greenwald |
| Hormone Monstress | Mona |
| Voice Actors | Jenny Slate; Ayo Edebiri |
Missy is one of the most academically enthusiastic and imaginative students in the series.
She is recognizable by her glasses, curly hair, and generally modest clothing. Her early personality is shaped by politeness, intellectual curiosity, and a desire to follow rules.
As the story progresses, Missy becomes increasingly interested in understanding her own identity rather than simply accepting other people’s expectations.
Her experiences explore racial identity, self-confidence, friendships, romantic curiosity, and personal expression.
Mona, her Hormone Monstress, encourages a more assertive side of her personality.
Missy’s relationship with her parents is also important. Cyrus and Monica provide a supportive home, although Missy gradually discovers that developing independence can involve questioning familiar assumptions.
Jenny Slate originally voiced Missy, with Ayo Edebiri taking over the role during the fourth season.
Missy’s development is one of the show’s clearest examples of growing confidence through self-discovery.
5. Jay Bilzerian
| Detail | Information |
|---|---|
| Full Name | Jay Bilzerian |
| Role | Main character |
| Family | Bilzerian family |
| Voice Actor | Jason Mantzoukas |
| Defining Trait | Unpredictable behavior |
Jay Bilzerian is among the most chaotic members of the main cast.
He has dark hair, a distinctive voice, and an energetic personality that frequently creates trouble at school.
Jay’s behavior initially appears almost entirely driven by outrageous jokes and impulsive decisions. However, his family background helps explain his desire for attention and affection.
His home environment is often unstable, and he receives considerably less dependable emotional support than some of his friends.
Despite his unpredictable actions, Jay is capable of loyalty and vulnerability.
His relationships with classmates, especially Matthew and Lola, reveal his desire to be accepted.
Jay also has a highly imaginative personality, which the series uses for some of its most absurd comedy.
His importance extends beyond comic relief because his story explores neglect, belonging, and the difference between appearing confident and feeling secure.
6. Matthew MacDell
| Detail | Information |
|---|---|
| Full Name | Matthew MacDell |
| Role | Main character |
| Voice Actor | Andrew Rannells |
| Defining Traits | Sarcasm, confidence, sensitivity |
Matthew MacDell is a sharp-tongued student recognized for his sarcasm, social commentary, and expressive personality.
He often appears more confident than many classmates, using humor to protect himself from uncomfortable situations.
As a gay teenager, Matthew experiences challenges involving romantic relationships, acceptance, and communication with his family.
His relationship with Jay becomes an important part of his development.
Although Matthew can appear dismissive or judgmental, he also demonstrates emotional vulnerability when relationships become serious.
His story emphasizes the difference between being publicly confident about identity and feeling completely secure in personal relationships.
Matthew contributes to the show’s exploration of LGBTQ+ adolescence without reducing his entire personality to one characteristic.
Hormone Monsters And Hormone Monstresses
Hormone monsters are among the most recognizable Big Mouth characters. They represent the emotional and physical impulses associated with puberty.
7. Maurice The Hormone Monster
Maurice, frequently called Maury, is Andrew’s Hormone Monster and one of the series’ most prominent supernatural characters.
Voiced by Nick Kroll, he has a furry appearance, horns, and an exaggerated personality.
Maury frequently encourages impulsive behavior and provides advice that is more entertaining than responsible.
His relationship with Andrew illustrates the confusing intensity of adolescence. He also has an important personal connection with Connie.
Despite his chaotic behavior, Maury occasionally demonstrates genuine concern for the people he guides.
8. Connie The Hormone Monstress
Connie is a confident, expressive Hormone Monstress voiced by Maya Rudolph.
Her distinctive appearance includes colorful fur and an elaborate hairstyle.
Connie encourages emotional expression, confidence, and the acceptance of changing feelings. However, her guidance can also be impulsive.
She plays an important role in Jessi’s development and also guides Nick during portions of the series.
Her personality combines warmth, dramatic flair, and unpredictable behavior.
9. Rick The Hormone Monster
Rick is an elderly Hormone Monster voiced by Nick Kroll.
Unlike Maurice, Rick appears physically worn out and frequently offers confusing or outdated advice.
His unusual speaking style and unpredictable comments make him a recurring source of comedy.
Rick is assigned to Nick during part of the series and becomes memorable because he rarely behaves like an effective guide.
His presence highlights the absurdity of receiving guidance from someone who seems even more confused than the teenager.
10. Tyler The Hormone Monster
Tyler is a younger Hormone Monster whose immaturity makes him particularly ineffective at offering guidance.
His energetic behavior and limited understanding of responsibility create humorous situations.
Tyler’s role demonstrates that the hormone creatures themselves differ in experience and emotional maturity.
He is associated with Nick during the show’s exploration of different puberty experiences.
11. Mona The Hormone Monstress
Mona is Missy’s Hormone Monstress, voiced by Thandiwe Newton.
She has a bold personality and encourages Missy to become more assertive.
Mona’s guidance contrasts with Missy’s initially cautious approach to relationships and self-expression.
Their interactions become important as Missy develops a more independent understanding of herself.
Mona represents confidence and curiosity, although her advice is not always measured.
Lovebugs And Other Emotional Creatures
The series expands its supernatural cast beyond hormone monsters, using imaginary creatures to portray psychological and emotional experiences.
12. Rochelle The Lovebug
Rochelle is a Lovebug voiced by Keke Palmer.
Lovebugs represent romantic attachment, affection, and the complicated emotions surrounding relationships.
Rochelle has a confident, outspoken personality and participates in storylines involving the emotional lives of teenagers.
She is also developed further in the related animated series Human Resources.
Her role helps distinguish romantic feelings from the physical impulses represented by hormone monsters.
13. Walter The Lovebug
Walter is a Lovebug voiced by Brandon Kyle Goodman.
He represents affection and romantic attachment, particularly the emotional intensity that can accompany developing feelings for another person.
Walter’s personality is expressive, dramatic, and sensitive.
His interactions with human characters demonstrate how affection can influence expectations, decisions, and personal relationships.
He also appears in Human Resources, which expands the fictional workplace of the emotional creatures.
14. Sonya The Lovebug
Sonya is another Lovebug, voiced by Pamela Adlon.
She is associated with romantic feelings and emotional attachment.
Her role involves helping characters navigate affection and attraction, although her own behavior can be complicated.
Sonya contributes to the show’s larger idea that emotions are not always predictable or easily controlled.
15. Tito The Anxiety Mosquito
Tito is an Anxiety Mosquito voiced by Maria Bamford.
She represents the persistent worries that can interfere with everyday decisions.
Her mosquito-like appearance reinforces the idea of anxiety as something that repeatedly intrudes into a person’s thoughts.
Tito frequently exaggerates potential problems, encouraging characters to imagine negative outcomes.
Her presence is especially important in storylines exploring insecurity and emotional stress.
16. Kitty The Depression Kitty
Kitty, commonly called Depression Kitty, is voiced by Jean Smart.
She appears as a large, soft cat whose seemingly comforting presence can encourage withdrawal and emotional isolation.
Kitty plays an important role in Jessi’s experiences with depression.
Rather than portraying sadness as a single moment, the character illustrates how persistent low mood can affect motivation and relationships.
Her storyline is one of the series’ more serious uses of supernatural symbolism.
17. The Shame Wizard
The Shame Wizard is voiced by David Thewlis.
He represents embarrassment, self-criticism, and the fear of social judgment.
His dramatic appearance and theatrical personality make him an intimidating presence.
The Shame Wizard attempts to influence characters by emphasizing their perceived mistakes and weaknesses.
His role explores how shame can affect self-esteem, relationships, and personal decisions.
18. Gratitoad
Gratitoad is a supernatural creature associated with gratitude and appreciation.
He provides a contrast to the more negative emotional beings.
Rather than focusing entirely on insecurity or disappointment, Gratitoad encourages characters to recognize positive aspects of their experiences.
His presence adds another dimension to the show’s fictional emotional system.
19. Ambition Gremlin
The Ambition Gremlin personifies the desire to achieve goals and gain recognition.
This creature represents motivation, competitiveness, and the pressure to succeed.
Ambition can encourage productive behavior, but it can also create unrealistic expectations.
The character fits the show’s broader approach of portraying internal drives as distinct personalities.
20. Logic Rock
Logic Rock is a creature associated with rational thinking and practical reasoning.
Unlike the more impulsive emotional beings, Logic Rock emphasizes considering situations carefully.
The character represents an attempt to balance intense feelings with a more analytical perspective.
Logic Rock is especially relevant to the expanded creature mythology shared with Human Resources.
Big Mouth School Characters And Classmates
The school’s supporting cast provides friendships, rivalries, social competition, and additional perspectives on adolescence.
21. Lola Skumpy
Lola Skumpy is a dramatic, outspoken student voiced by Nick Kroll.
Her recognizable personality includes exaggerated speech, intense reactions, and an overwhelming desire for attention.
Lola frequently becomes involved in complicated friendships and romantic relationships.
Her connection with Jay is particularly memorable because both characters behave impulsively.
Although she often appears confident, Lola also reveals insecurity and a strong need for affection.
Her storyline adds emotional depth to a character initially presented through outrageous comedy.
22. Devin LeSeven
Devin LeSeven is a student associated with popularity and social hierarchy.
Voiced by Jak Knight, Devin frequently participates in storylines involving status, appearance, and school relationships.
His behavior reflects the importance that teenagers sometimes place on peer approval.
Devin’s interactions with classmates help establish the school’s social environment.
23. Devon
Devon is another recurring student who participates in the school’s friendship and social dynamics.
He is frequently associated with Devin LeSeven.
Their relationship contributes to the show’s portrayal of popularity, romantic expectations, and changing social connections.
Although Devon is not a central protagonist, he helps develop the broader student community.
24. Gina Alvarez
Gina Alvarez is a student voiced by Gina Rodriguez.
She is confident, direct, and generally more comfortable challenging social expectations than some classmates.
Her interactions with Nick and other students become important during storylines about attraction, body image, and respect.
Gina’s experiences illustrate how peer attention can affect a teenager’s sense of privacy and personal boundaries.
She is notable for expressing her feelings openly and refusing to be defined entirely by other people’s opinions.
25. Ali Wong
Ali Wong is a student voiced by the comedian and actress of the same name.
She is confident, outspoken, and comfortable discussing her identity.
Ali’s introduction expands the show’s conversations about sexuality and attraction.
Her interactions with Jessi and other classmates create opportunities to explore assumptions about relationships and personal identity.
Ali’s role emphasizes that individual experiences cannot always be explained through simple categories.
26. Caleb
Caleb is a student voiced by Joe Wengert.
He is recognizable for his direct communication style, attention to specific details, and distinctive interpretation of social situations.
Caleb is portrayed as autistic, and his characterization includes a preference for clarity and predictability.
His friendship with Matthew becomes an especially meaningful part of his role.
Caleb demonstrates loyalty and can provide a perspective that differs from the emotional reactions of other classmates.
27. Elijah
Elijah is a student voiced by Brian Tyree Henry.
His character introduces another perspective on adolescent relationships, faith, and personal boundaries.
Elijah’s storyline with Missy explores the differences between romantic interest, attraction, and individual expectations.
He is especially important because his experiences demonstrate that teenagers do not all approach relationships in the same way.
28. Charles Lu
Charles Lu is a student who appears in school and relationship storylines.
He is associated with confidence, romantic interests, and the changing social dynamics among classmates.
His interactions with other teenagers contribute to the show’s exploration of popularity and attraction.
Although he is less central than Nick or Andrew, Charles helps establish the broader school environment.
Nick Birch’s Family Characters
Nick’s family provides an important contrast to some of the more troubled households portrayed in the series.
29. Leah Birch
Leah Birch is Nick’s older sister, voiced by Kat Dennings.
She is a teenager navigating relationships and independence while frequently finding Nick’s behavior embarrassing.
Leah’s greater experience with adolescence makes her an important contrast to her younger brother.
Her relationship with Nick includes teasing, irritation, and occasional support.
She helps demonstrate how puberty and growing independence look different at various stages of adolescence.
30. Judd Birch
Judd Birch is Nick’s older brother, voiced by Jon Daly.
He has a dark, rebellious appearance and an intimidating personality.
Judd frequently behaves as though he is uninterested in ordinary family activities.
His unpredictable behavior and unusual hobbies make him one of the family’s most distinctive members.
Although Nick sometimes fears or admires Judd, their relationship also contains moments of genuine sibling connection.
Judd represents a more unconventional version of teenage independence.
31. Diane Birch
Diane Birch is Nick’s mother, voiced by Maya Rudolph.
She is affectionate, supportive, and unusually comfortable discussing emotional and personal subjects with her children.
Diane frequently attempts to maintain open communication within the family.
Her parenting style contrasts with the more restrictive approaches of other parents in the series.
Although her openness sometimes embarrasses Nick, she provides an important source of emotional stability.
32. Elliot Birch
Elliot Birch is Nick’s father, voiced by Fred Armisen.
He is gentle, affectionate, and enthusiastic about expressing love for his family.
Elliot’s personality contrasts with traditional portrayals of emotionally distant fathers.
He frequently attempts to connect with Nick through conversations and affectionate gestures.
His behavior can embarrass his children, but he remains a dependable and caring parent.
Andrew Glouberman’s Family Characters
Andrew’s household is an important part of his emotional development.
33. Marty Glouberman
Marty Glouberman is Andrew’s father, voiced by Richard Kind.
He is loud, demanding, easily frustrated, and frequently critical.
Marty often reacts to situations with anger or exaggerated concern.
His behavior contributes to Andrew’s nervous personality and complicated relationship with authority.
Despite his difficult manner, Marty also demonstrates concern for his family.
The contrast between his intentions and his behavior creates both comedy and emotional conflict.
34. Barbara Glouberman
Barbara Glouberman is Andrew’s mother, voiced by Paula Pell.
She frequently provides a calmer presence in the household.
Barbara attempts to manage family tensions while supporting Andrew.
Her relationship with Marty contributes to the show’s portrayal of complicated adult marriages.
Although she is less confrontational than her husband, Barbara has her own opinions and emotional needs.
Jessi Glaser’s Family Characters
Jessi’s parents play important roles in storylines about family instability and emotional adjustment.
35. Shannon Glaser
Shannon Glaser is Jessi’s mother, voiced by Jessica Chaffin.
She is an important influence on Jessi’s understanding of relationships and independence.
Changes in Shannon’s personal life affect the family’s stability.
Her decisions sometimes create tension with Jessi, who struggles to understand the adults around her.
Shannon’s storyline demonstrates how parental relationships can influence a child’s emotional well-being.
36. Greg Glaser
Greg Glaser is Jessi’s father, voiced by Seth Morris.
He has a relaxed personality and frequently approaches responsibilities differently from Shannon.
Greg’s laid-back attitude can make him seem approachable, but it also creates problems when Jessi needs consistency.
His relationship with Jessi includes affection, misunderstandings, and efforts to maintain their connection.
Greg illustrates the challenges of balancing personal freedom with parental responsibility.
Missy Foreman-Greenwald’s Family Characters
Missy’s parents contribute significantly to her early worldview and continuing personal development.
37. Cyrus Foreman-Greenwald
Cyrus Foreman-Greenwald is Missy’s father, voiced by Jordan Peele.
He is supportive, affectionate, and interested in helping his daughter develop positive values.
Cyrus frequently approaches parenting through encouragement and thoughtful discussion.
His relationship with Missy becomes especially important as she begins exploring her identity more independently.
38. Monica Foreman-Greenwald
Monica Foreman-Greenwald is Missy’s mother, voiced by Chelsea Peretti.
She is caring, enthusiastic, and strongly involved in family life.
Monica encourages Missy’s education and emotional development.
As Missy grows older, their relationship reflects the challenges of maintaining parental guidance while allowing greater independence.
Monica and Cyrus together provide one of the show’s more supportive family environments.
Teachers, School Staff And Authority Figures
The adults working at the school contribute to the show’s satire of education, authority, and adolescent life.
39. Coach Steve
Coach Steve is a recurring school employee voiced by Nick Kroll.
He is socially awkward, enthusiastic, and often remarkably unaware of how other people interpret his behavior.
Although he works in a position associated with adult responsibility, Coach Steve frequently demonstrates limited practical judgment.
His character provides an exaggerated contrast between adult authority and actual maturity.
He is also important to the broader supernatural mythology of the series.
40. Mr. Lizer
Mr. Lizer is a teacher voiced by Rob Huebel.
He is portrayed as an inappropriate and deeply flawed adult authority figure.
His conduct becomes part of the show’s criticism of adults who misuse positions of trust.
Unlike the generally supportive parents in some storylines, Mr. Lizer demonstrates that authority does not automatically imply responsibility.
41. Principal Barron
Principal Barron is a school administrator responsible for overseeing student behavior and school operations.
The character appears in situations involving discipline, authority, and the school’s chaotic environment.
Principal Barron helps establish the institutional setting in which the main teenagers interact.
The character’s presence also contributes to the show’s satire of school administration.
Other Memorable Big Mouth Characters
Several unusual supporting characters expand the show’s humor beyond its central students and families.
42. Duke Ellington
Duke Ellington appears as the ghost of the famous American jazz musician.
Voiced by Jordan Peele, the character provides commentary, advice, and surreal humor.
He is associated with Nick’s household and occasionally interacts with the teenage characters.
The show’s fictional ghost is a comedic interpretation rather than a factual portrayal of the historical musician.
His presence allows the series to incorporate music history into its supernatural storytelling.
43. Featuring Ludacris
Featuring Ludacris is Jay Bilzerian’s dog, voiced by Jordan Peele.
The character is unusual because the audience can hear his internal thoughts.
His commentary often reveals a perspective very different from Jay’s behavior.
The dog’s name is itself part of the show’s absurd humor.
Featuring Ludacris provides comic relief while also reinforcing the unconventional atmosphere surrounding Jay’s family.
44. Cherry Marashino
Cherry Marashino is a supporting student character who appears in school-related storylines.
She contributes to the wider network of classmates and adolescent relationships.
Her presence helps make the school environment feel larger than the central friendship group.
Although Cherry receives less individual development than the principal teenagers, she remains part of the show’s recognizable supporting cast.
45. Milk
Milk is a recurring student voiced by Nathan Fillion.
He is recognized for his unusual stories and distinctive behavior.
Milk frequently makes claims about his family and personal experiences that other characters find strange.
His personality contributes to the show’s surreal approach to ordinary school interactions.
Although he is not central to the main plot, Milk is a memorable example of the series’ eccentric background characters.
Who Are The Main Big Mouth Characters?
The six most central teenage characters are Nick Birch, Andrew Glouberman, Jessi Glaser, Missy Foreman-Greenwald, Jay Bilzerian, and Matthew MacDell.
Their stories form the foundation of the series.
| Main Character | Central Personal Struggle |
|---|---|
| Nick Birch | Insecurity and comparison |
| Andrew Glouberman | Anxiety and impulsive feelings |
| Jessi Glaser | Emotional adjustment and independence |
| Missy Foreman-Greenwald | Identity and self-confidence |
| Jay Bilzerian | Belonging and family instability |
| Matthew MacDell | Identity, acceptance, and relationships |
The supernatural characters support these stories by giving visible personalities to emotions and internal conflicts.
Important Big Mouth Character Groups And Teams
The show’s cast can be divided into several meaningful groups.
| Group | Important Members | Main Function |
|---|---|---|
| Central students | Nick, Andrew, Jessi, Missy, Jay, Matthew | Main coming-of-age stories |
| Hormone monsters | Maurice, Connie, Rick, Tyler, Mona | Puberty and physical impulses |
| Emotional creatures | Rochelle, Walter, Sonya, Tito, Kitty | Love, anxiety, and mood |
| Birch family | Nick, Leah, Judd, Diane, Elliot | Family support and conflict |
| Glouberman family | Andrew, Marty, Barbara | Parenting and insecurity |
| Glaser family | Jessi, Shannon, Greg | Family changes |
| Foreman-Greenwald family | Missy, Cyrus, Monica | Identity and family values |
| School community | Lola, Caleb, Gina, Ali, Coach Steve | Friendship and social dynamics |
These groups overlap throughout the series, creating relationships that change as the characters grow.
Big Mouth Character Relationships Explained
Relationships are among the most important parts of the show’s storytelling.
| Character | Connected Character | Relationship |
|---|---|---|
| Nick Birch | Andrew Glouberman | Best friends |
| Nick Birch | Leah Birch | Siblings |
| Nick Birch | Judd Birch | Siblings |
| Andrew Glouberman | Maurice | Hormone Monster assignment |
| Jessi Glaser | Connie | Hormone Monstress assignment |
| Missy Foreman-Greenwald | Mona | Hormone Monstress assignment |
| Jay Bilzerian | Matthew MacDell | Romantic relationship |
| Jay Bilzerian | Lola Skumpy | Romantic relationship |
| Nick Birch | Diane Birch | Mother and son |
| Andrew Glouberman | Marty Glouberman | Father and son |
| Jessi Glaser | Shannon Glaser | Mother and daughter |
| Missy Foreman-Greenwald | Cyrus Foreman-Greenwald | Father and daughter |
Some relationships change significantly over the series. Romantic connections, friendships, and supernatural assignments should therefore be understood within their particular storylines rather than assumed to remain constant.
Big Mouth Hormone Monsters And Emotional Abilities
The show’s imaginary creatures possess narrative functions rather than conventional superhero powers.
| Creature | Represents | Main Influence |
|---|---|---|
| Maurice | Puberty and desire | Encourages impulses |
| Connie | Puberty and emotion | Encourages expression |
| Rick | Puberty | Provides unconventional guidance |
| Tyler | Puberty | Encourages immature behavior |
| Mona | Puberty and confidence | Encourages assertiveness |
| Rochelle | Romantic attachment | Intensifies affection |
| Walter | Romantic attachment | Encourages emotional connection |
| Sonya | Romantic attachment | Influences romantic feelings |
| Tito | Anxiety | Amplifies worries |
| Kitty | Depression | Encourages withdrawal |
| Shame Wizard | Shame | Intensifies embarrassment |
| Gratitoad | Gratitude | Encourages appreciation |
| Ambition Gremlin | Ambition | Encourages achievement |
| Logic Rock | Logic | Encourages rational thinking |
These descriptions summarize their symbolic roles, not measurable supernatural power levels.
Big Mouth Characters And Voice Actors
Voice performances are central to the show’s distinctive humor. Several performers voice multiple characters.
| Character | Voice Actor |
|---|---|
| Nick Birch | Nick Kroll |
| Andrew Glouberman | John Mulaney |
| Jessi Glaser | Jessi Klein |
| Missy Foreman-Greenwald | Jenny Slate; Ayo Edebiri |
| Jay Bilzerian | Jason Mantzoukas |
| Matthew MacDell | Andrew Rannells |
| Maurice | Nick Kroll |
| Connie | Maya Rudolph |
| Rick | Nick Kroll |
| Mona | Thandiwe Newton |
| Rochelle | Keke Palmer |
| Walter | Brandon Kyle Goodman |
| Sonya | Pamela Adlon |
| Tito | Maria Bamford |
| Kitty | Jean Smart |
| Shame Wizard | David Thewlis |
| Lola Skumpy | Nick Kroll |
| Gina Alvarez | Gina Rodriguez |
| Ali Wong | Ali Wong |
| Caleb | Joe Wengert |
| Elijah | Brian Tyree Henry |
| Leah Birch | Kat Dennings |
| Judd Birch | Jon Daly |
| Diane Birch | Maya Rudolph |
| Elliot Birch | Fred Armisen |
| Marty Glouberman | Richard Kind |
| Barbara Glouberman | Paula Pell |
| Shannon Glaser | Jessica Chaffin |
| Greg Glaser | Seth Morris |
| Cyrus Foreman-Greenwald | Jordan Peele |
| Monica Foreman-Greenwald | Chelsea Peretti |
| Coach Steve | Nick Kroll |
| Mr. Lizer | Rob Huebel |
| Duke Ellington | Jordan Peele |
| Featuring Ludacris | Jordan Peele |
| Milk | Nathan Fillion |
This table identifies established voice performances for the original animated series. It is not a complete list of every performer across all episodes or related productions.
How The Main Big Mouth Characters Develop
Character development is an important reason the show extends beyond isolated jokes about puberty.
Nick And Andrew’s Changing Friendship
Nick and Andrew begin as close friends, but their differences become increasingly difficult to ignore.
Jealousy, romantic interests, and personal insecurities affect their relationship.
Their conflicts show how childhood friendships can change when individuals develop at different emotional speeds.
Jessi’s Emotional Growth
Jessi experiences changes in her family, friendships, and sense of identity.
Her development explores the difficulty of managing intense emotions while becoming more independent.
The series uses her story to examine both emotional vulnerability and personal resilience.
Missy’s Growing Confidence
Missy gradually moves beyond her initially cautious personality.
She becomes more willing to question expectations and express her preferences.
Her development emphasizes that self-discovery is a continuing process rather than a single defining event.
Jay’s Search For Belonging
Jay’s unpredictable behavior often hides a desire for affection and stability.
His relationships reveal that he is capable of genuine attachment despite his chaotic personality.
His character illustrates how family circumstances can shape emotional behavior.
Matthew’s Personal Relationships
Matthew’s development involves balancing confidence with emotional honesty.
His experiences demonstrate that understanding one’s identity does not eliminate uncertainty about relationships.
Big Mouth And Human Resources Character Connections
Human Resources is an animated spin-off set within the same broader fictional universe.
While Big Mouth focuses primarily on teenagers, Human Resources explores the professional and personal lives of the creatures who manage human emotions.
Several supernatural characters appear across both productions, including Maurice, Connie, Rochelle, Walter, and Sonya.
The spin-off expands the mythology surrounding Lovebugs, Hormone Monsters, and other emotional beings.
However, the two shows have different narrative priorities. Big Mouth remains centered on adolescence, while Human Resources examines emotional experiences across a wider range of human life.
This distinction is useful when identifying characters who appear in both series.
Interesting Facts About Big Mouth Characters
- Nick Kroll voices several characters. These include Nick Birch, Maurice, Lola Skumpy, Rick, and Coach Steve.
- The series draws on real adolescent experiences. Co-creators Nick Kroll and Andrew Goldberg incorporated elements of their childhood friendship into the show’s premise.
- Missy has two principal voice performers. Jenny Slate originally portrayed her, while Ayo Edebiri assumed the role during Season 4.
- Hormone Monsters are not the only emotional creatures. The show’s mythology also includes Lovebugs, Anxiety Mosquitoes, and other personifications.
- Duke Ellington is based on a historical person. The show presents a fictional ghost version of the American jazz musician.
- The characters’ experiences are deliberately varied. Different students respond to puberty, relationships, and family expectations in different ways.
- The spin-off expands the creature mythology. Human Resources develops the supernatural characters beyond their roles in the original series.
Read Next
Explore more helpful guides from this category.
Frequently Asked Questions
Who Is The Main Character In Big Mouth?
Nick Birch and Andrew Glouberman are two central protagonists. Jessi Glaser, Missy Foreman-Greenwald, Jay Bilzerian, and Matthew MacDell also play major roles throughout the series.
How Many Big Mouth Characters Are There?
This guide covers 45 notable characters. The complete franchise includes many additional recurring, minor, guest, and supernatural characters, so 45 is not the total number appearing in the series.
Who Is Nick Birch’s Hormone Monster?
Nick is assigned different Hormone Monsters during the series, including Rick and Tyler. Connie also guides him during important storylines.
Who Is Andrew’s Hormone Monster?
Andrew’s primary Hormone Monster is Maurice, commonly called Maury. He is voiced by Nick Kroll and represents many of Andrew’s puberty-related impulses.
Who Voices Missy In Big Mouth?
Jenny Slate originally voiced Missy Foreman-Greenwald. Ayo Edebiri took over the role during the fourth season and continued portraying the character afterward.
Who Is The Shame Wizard?
The Shame Wizard is a supernatural creature representing embarrassment, guilt, and self-criticism. David Thewlis provides his voice.
Are Big Mouth And Human Resources Connected?
Yes. Human Resources is a spin-off set within the same fictional universe. It features several emotional creatures who also appear in Big Mouth.
Who Are The Main Female Characters In Big Mouth?
Jessi Glaser and Missy Foreman-Greenwald are central female characters. Other notable characters include Lola Skumpy, Gina Alvarez, Ali Wong, Leah Birch, Connie, and Mona.
Who Are The Main Male Characters In Big Mouth?
Nick Birch, Andrew Glouberman, Jay Bilzerian, and Matthew MacDell are among the central male characters. Maurice, Rick, Coach Steve, and Judd Birch are also recognizable members of the cast.
Is Big Mouth Suitable For Children?
No. Despite its animated appearance and focus on teenage characters, Big Mouth is intended for mature audiences. It contains explicit sexual discussions, strong language, and adult themes.
Conclusion
The Big Mouth characters make the Netflix animated series distinctive by combining recognizable teenage experiences with surreal representations of human emotions.
Nick Birch and Andrew Glouberman anchor the story through their complicated friendship, while Jessi Glaser, Missy Foreman-Greenwald, Jay Bilzerian, and Matthew MacDell bring different perspectives on identity, relationships, and growing up.
The supernatural cast adds another dimension. Maurice and Connie personify puberty, while characters such as Tito, Depression Kitty, and the Shame Wizard represent emotional experiences that can be difficult to explain through ordinary dialogue.
Family members, classmates, and school employees expand the show’s world and demonstrate how adolescence is influenced by social environments and personal relationships.
Understanding these 45 characters provides a useful foundation for following the series, recognizing its recurring personalities, and appreciating how its unusual cast turns complicated experiences into animated comedy.