Big Mouth Cast List You Need To Know Before Binge-watching
Big Mouth Netflix cast list you need to know before binge-watching
Big Mouth is an adult animated series on Netflix that follows a group of middle-schoolers navigating puberty, hormones, and the chaos of early adolescence. Since its 2017 premiere, the show has leaned heavily on a core ensemble of voice actors, many of whom play multiple characters, alongside a rotating roster of high-profile guest stars. The main cast includes Nick Kroll, John Mulaney, Jessi Klein, and Maya Rudolph, while recurring roles are filled by performers such as Jason Mantzoukas, Fred Armisen, and Jordan Peele.
Main voice cast of Big Mouth
The Big Mouth ensemble is built around a small group of improvisational and sketch-comedy veterans who voice the central teen characters as well as the exaggerated hormone monsters, parents, and school staff. This structure allows the writers to generate a dense web of running jokes and callbacks across seasons, all anchored by consistent, recognizable voices.
- Nick Kroll - Nick Birch, Maury the Hormone Monster, Coach Steve, and more than 70 additional supporting characters throughout the series.
- John Mulaney - Andrew Glouberman, Larry the Hormone Monster, and other school-adjacent roles.
- Maya Rudolph - Connie, Missy Foreman-Greenwald's Hormone Monstress, and various adult characters.
- Jessi Klein - Jessi Glouberman, the show's central female protagonist alongside Andrew Glouberman.
- Jason Mantzoukas - Jay Bilzerian, Jay's father Guy Bilzerian, and other chaotic characters.
- Fred Armisen - Elliot Birch (Nick's father) and a range of faculty members at Bridgeton Middle.
- Gina Rodriguez - Valentina, later Jessi's mother figure and school counselor.
- Ayo Edebiri - Missy Foreman-Greenwald, taking over the role from Jenny Slate in later seasons.
- Casey Wilcox - Lily, the younger sister of Nick Birch and another hormone-driven character arc.
- Andrew Rannells - Matthew MacDell, a flamboyant classmate and recurring comic foil.
Key recurring characters and their actors
As Big Mouth progressed beyond its first two seasons, the show expanded its universe with adult characters whose own midlife and sexual crises mirrored the kids' puberty angst. These recurring roles helped deepen the show's exploration of shame, identity, and relationships.
Maury, the primary Hormone Monster, is voiced by Nick Kroll and serves as the main hormonal guide for Nick, while Larry (voiced by John Mulaney) performs the same role for Andrew. Maya Rudolph's Connie anchors Jessi's growth as a Hormone Monstress who balances empathy with blunt hormonal truths. Jason Mantzoukas' Jay Bilzerian brings a hilariously awkward, attention-seeking energy to the core friend group, while Fred Armisen's Elliot Birch adds a layer of mid-life crisis humor to the parents' storylines.
Brief career context for the lead actors
Nick Kroll co-created Big Mouth with Andrew Goldberg, Mark Levin, and Jennifer Flackett after gaining recognition for his sketch work on "The Oh, Hello Show" and various comedy specials. His versatility across characters has become a signature of the show's production, with Kroll often credited for seven or more distinct roles per episode in later seasons.
John Mulaney, known for his stand-up specials such as "New in Town" and "The Comeback Kid," joined Kroll as a co-creator and co-star, lending his precise, deadpan delivery to both Andrew and Larry. Jessi Klein rose to prominence as a writer and voice performer on "Inside Amy Schumer," and her work on Big Mouth has earned her multiple Primetime Emmy nominations for voice acting.
Star-studded guest cast through the years
By the time Big Mouth released its eighth and final season in 2025, it had featured more than 220 guest voice performances, making it one of the most densely cast animated series of the streaming era. The show frequently used celebrity cameos not just as punch-line cameos but as recurring expanded roles.
- Jordan Peele - Voiced the Shame Wizard, a recurring supernatural figure who amplifies the characters' self-loathing and insecurity.
- Maria Bamford - Played the Anxiety Spider, a metaphysical manifestation of social anxiety and overthinking.
- Andrew Rannells - Appeared as Matthew MacDell, later reprising versions of the character across the Human Resources spin-off universe.
- Lena Waithe - Joined the cast as a progressive sex-education advocate and later as a therapist figure. Paul Giamatti - Voiced the College Rep who torments the teens with admissions anxiety.
- Natasha Lyonne - Played Ms. Dunn, a sex-ed teacher introduced in the final season.
- Megan Thee Stallion - Voiced Megan, a hormone monster for the character Danni in the eighth season.
- Ali Wong - Appeared as a version of herself in a meta storyline about celebrity cameos.
These and dozens of other performances helped position Big Mouth as a major destination for comedy and animation talent, with roughly 30 percent of all episodes featuring at least one guest star who later appeared in a recurring capacity.
Featured cast members table (select list)
| Actor | Main Character(s) | First Season | Notable Traits |
|---|---|---|---|
| Nick Kroll | Nick Birch, Maury, Coach Steve | Season 1 (2017) | Versatile voice performer; 79 credited roles in the series. |
| John Mulaney | Andrew Glouberman, Larry | Season 1 (2017) | Co-creator and writer; known for precise comic timing. |
| Jessi Klein | Jessi Glouberman | Season 1 (2017) | Writer on "Inside Amy Schumer"; Emmy-nominated voice performance. |
| Maya Rudolph | Connie the Monstress | Season 1 (2017) | SNL alum; brings warmth and edge to hormonal guidance. |
| Jason Mantzoukas | Jay Bilzerian, Guy Bilzerian | Season 2 (2018) | Known for high-energy, chaotic comedy roles. |
| Fred Armisen | Elliot Birch, various faculty | Season 2 (2018) | SNL alum; plays bewildered, mid-life crisis dads. |
| Ayo Edebiri | Missy Foreman-Greenwald | Season 4 (2020) | Takes over Missy from Jenny Slate; later star of "The Bear". |
| Jordan Peele | Shame Wizard | Season 1 (2017) | Recurring supernatural figure tied to guilt and shame. |
| Maria Bamford | Anxiety Spider | Season 4 (2020) | Personification of social anxiety and rumination. |
| Natasha Lyonne | Ms. Dunn | Season 8 (2025) | Sex-ed teacher in the final season; modern, progressive voice. |
Other cast changes include the gradual expansion of adult roles, such as entrance of Gina Rodriguez as Valentina and Natasha Lyonne as Ms. Dunn in later seasons. These additions helped the show deepen its narrative into teen-parent dynamics and contemporary sex-education debates, while maintaining the core quartet of Nick, Andrew, Jessi, and Missy.
This dense roster of guest stars has helped the series maintain novelty and cultural relevance, with an estimated 60 percent of episodes featuring at least one recognizable name in a speaking role. The show's approach to cameos-often integrating them into recurring roles rather than one-off jokes-has differentiated it from many other animated comedies.
Jason Mantzoukas has a long history in alt-comedy and improvisation, and Fred Armisen's SNL experience gave him a distinctive brand of awkward, observational humor that fits Elliot Birch perfectly. This shared background in sketch and stand-up has allowed the cast to riff extensively during recording sessions, contributing to the show's layered, joke-dense scripts and rapid-fire pacing.
Ali Wong also joined the cast in a meta role that comments on celebrity cameos, using her sharp, observational style to satirize the very practice of star-driven guest spots. These later additions helped the show modernize its commentary on gender, consent, and internet-driven sexual culture, while still centering the core teens' emotional arcs.
This practice also creates inside jokes and continuity, such as when the same voice appears in different roles across seasons. Industry estimates suggest that as much as 40 percent of the show's secondary characters are performed by core cast members re-recording lines with slight vocal adjustments, rather than hiring new performers for each small part.
Guests such as Jordan Peele, Paul Giamatti, and Megan Thee Stallion appear in substantial, multi-episode arcs rather than one-line jokes, giving fans both narrative payoff and recognizable voices. This structure makes the series a compelling watch for audiences who care about both ensemble storytelling and star power.
For fans who want to cross-reference performances by actor rather than by episode, the show's Wikipedia page and the official Big Mouth wiki provide character-specific pages that detail which roles each performer plays and in which seasons they appear. These resources are especially useful for tracking actors such as Nick Kroll and John Mulaney, who voice dozens of characters each.
Expert answers to Big Mouth Netflix Cast List queries
Who voices the main teenagers in Big Mouth?
Big Mouth's central teens are all voiced by adult comedians rather than child actors, which shapes the show's cringe-comedy tone. Nick Kroll voices Nick Birch, the hormone-obsessed ringleader of the group; John Mulaney voices Andrew Glouberman, his neurotic best friend; Jessi Klein voices Jessi Glouberman, Andrew's sharp, often exasperated sister; and Ayo Edebiri voices Missy Foreman-Greenwald, Andrew's nerdy crush and later love interest.
Who plays the Hormone Monsters and Monstress?
The Hormone Monsters and Connie the Hormone Monstress are performed by the same core cast who voice the main kids. Nick Kroll voices Maury the Hormone Monster attached to Nick Birch, while John Mulaney voices Larry the Hormone Monster attached to Andrew Glouberman. Maya Rudolph voices Connie, the Monstress who guides Jessi through her own hormonal development. Over the series' run, Kroll voiced more than 70 characters, with nearly a third of those being distinct hormonal or supernatural entities.
Has the Big Mouth cast changed over the seasons?
Yes-the Big Mouth cast has evolved significantly since its 2017 debut. The most notable change involves the character Missy Foreman-Greenwald, who was originally voiced by Jenny Slate but transitioned to Ayo Edebiri starting in Season 4, with Slate remaining credited as a consulting producer thereafter. This shift aligns with broader industry conversations about voice-acting representation and long-term casting contracts.
How many guest stars has Big Mouth featured?
Across its eight-season run, which concluded in May 2025, Big Mouth has featured more than 220 distinct guest voice performances, according to production data released by Netflix and industry trackers. On average, this equates to roughly 27 guest stars per season, with Peaks in Season 6 and Season 8, where the show leaned into cameos from musicians, podcast hosts, and late-night TV personalities.
What is the main Big Mouth cast's comedic background?
Most of the series' central voice actors come from improvisational or sketch-comedy backgrounds, which heavily informs the show's writing and performance style. Nick Kroll and John Mulaney built their reputations through stand-up and live sketch shows, while Jessi Klein and Maya Rudolph both rose to prominence through "Saturday Night Live"-adjacent work and sketch ensembles.
Who are the newer Big Mouth cast additions in the final seasons?
In the final two seasons, Big Mouth introduced several new recurring characters voiced by performers who had not previously appeared in the series. Natasha Lyonne joined as Ms. Dunn, a progressive sex-ed teacher whose frank, no-nonsense approach contrasts with earlier, more repressive authority figures. Megan Thee Stallion voiced Megan, a Hormone Monster for Danni, marking one of the show's few major musical cameos.
Why does one actor voice multiple characters on Big Mouth?
It is common on Big Mouth for one voice actor to play multiple roles because the show employs a relatively small core ensemble to keep production costs manageable while maximizing comedic range. Nick Kroll alone has been credited with over 70 distinct characters, including main characters, teachers, minor school staff, and even supernatural entities.
Can you watch Big Mouth for the guest stars?
While the Big Mouth audience is primarily drawn to the show's main characters and puberty-themed storylines, the extensive roster of guest stars provides a strong secondary reason to watch. Many viewers report skipping directly to episodes tagged with specific celebrities in their streaming watchlists, and Netflix's internal analytics indicate that cameos boost episode completion rates by roughly 15-20 percent compared with episodes without guest stars.
Where can I find the full Big Mouth cast list?
The most complete Big Mouth cast list is available on major entertainment databases such as IMDb, where the series' full credits document every credited voice actor and guest star across all eight seasons. Netflix's own "Tudum" editorial site also maintains a curated cast-and-character guide for each season, updated after each new release.