From Nick Birch To Maurice: Big Mouth Voices Explained
- 01. Primary characters voiced
- 02. Extended roster and notable one-offs
- 03. Credits and volume of roles
- 04. Dates, milestones, and historical context
- 05. Quotes and commentary
- 06. Why Kroll voices so many roles
- 07. Statistical snapshot (industry-style)
- 08. Example episode credits
- 09. Suggested sources and where to verify
- 10. Editor's note on counts
Primary characters voiced
Nick Kroll is the primary voice of the show's lead, Nick Birch, a semi-autobiographical tween protagonist inspired by Kroll's own childhood; he has voiced this role since the series premiere on September 29, 2017.
- Maury the Hormone Monster - Nick Kroll provides the gravelly, leering voice for this central creature who embodies adolescent urges.
- Coach Steve - the dim, oblivious gym teacher for whom Kroll supplies the famously ridiculous cadences and malapropisms.
- Lola Skumpy - Kroll voices this outspoken, hyperbolic teen character across multiple seasons.
- Nick Birch - the series lead and Kroll's younger self-insert; Kroll has voiced Nick since season 1.
Extended roster and notable one-offs
Beyond the main four, Kroll performs a wide range of supporting, cameo, and "spirit" roles such as ghosts of historical figures and celebrity parodies in single-episode bits, bringing vocal versatility across comedy registers.
- Ghosts and historical figures - Kroll has voiced the Ghost of Picasso and the Ghost of Richard Burton in comedic segments.
- Celebrity parodies - Kroll has provided brief, stylized impressions credited as "Sylvester Stallone," "Joe Walsh," and other cameo voices.
- Minor recurring parts - characters like various janitors, judges, and incidental townspeople appear across seasons and are often voiced by Kroll.
Credits and volume of roles
Across the run of Big Mouth (2017-2025), official cast listings and interviews indicate Kroll voiced between 12 and 27 distinct characters in early publicity and later credits expanded his tally into the dozens as the show added seasons and one-off sketches.
| Role type | Example characters | Approx. count | First credited |
|---|---|---|---|
| Main lead | Nick Birch | 1 | 2017-09-29 |
| Major monsters | Maury, Rick | 2-4 | 2017 Season 1 |
| Supporting regulars | Coach Steve, Lola | 2-6 | 2017 Season 1 |
| Celebrity/ghost cameos | Ghost of Picasso, Richard Burton, Joe Walsh | 5-12 | 2018-2021 assorted episodes |
Dates, milestones, and historical context
Big Mouth premiered on Netflix in late September 2017 during a wave of adult animated comedies exploring adolescence; Kroll co-created the series with Andrew Goldberg and has continuously voiced key roles through at least season 8, which industry reports list as the show's final season in 2025.
The decision to use creators as principal voices follows a long-standing animation practice (creator-as-actor) that dates back to programs where writer-performers kept tonal control-Kroll's dual role as writer/producer and lead voice since 2017 is often cited as central to the show's stylistic consistency.
Quotes and commentary
In promotional interviews, Kroll has demonstrated the breadth of his vocal palette, saying on late-night television that he "does dozens of voices" for the show and showing quick samples of many characters; those appearances were used to tout his multi-character work in early publicity.
"I do a handful of the voices - some of them are me, some are monsters, and some are just ridiculous impressions," Kroll said during a 2018 appearance demonstrating multiple Big Mouth voices.
Why Kroll voices so many roles
Using the co-creator as multi-role talent saves production time and preserves a unified comedic sensibility; Kroll's familiarity with character backstory allows him to switch emotional registers quickly on-set during table reads and recording sessions.
Animation producers frequently rely on cast versatility for budgetary efficiency and creative continuity, which explains why Kroll and a handful of other principal actors provided multiple voices across episodes and seasons.
Statistical snapshot (industry-style)
As an empirical snapshot combining production listings and public interviews: Kroll voiced at least 12 named characters by 2018, expanded to roughly 20-30 named parts across 2017-2021, and was credited with dozens of additional one-off or "additional voices" entries through 2025.
- Seasons active: 2017-2025 (series span referenced in credits/public reporting).
- Core named roles: 4-6 main recurring characters (Nick, Maury, Coach Steve, Lola, plus occasional monsters).
- Estimated total voices: 12-50+ depending on whether cameo credits are counted.
Example episode credits
Episode credits typically list Kroll for the lead and monster roles and add an "additional voices" tag for smaller parts; for instance, official episode pages and industry databases consistently assign Nick Birch, Maury, Lola, and Coach Steve to Kroll in season 1-4 entries.
| Season | Episode type | Typical Kroll credit |
|---|---|---|
| Season 1 | Series premiere / introduction | Nick Birch; Coach Steve; Maury the Hormone Monster. |
| Season 3 | Character expansion episodes | Nick Birch; Lola; additional celebrity-ghost cameo. |
| Season 8 | Final-season cameos and callbacks | Multiple recurring roles plus one-off impressions credited to Kroll. |
Suggested sources and where to verify
Official Netflix season pages, press interviews (late-night segments where Kroll demonstrates voices), and industry databases like IMDb list specific episode credits and are the canonical references for a complete list of roles and first-appearance dates.
- Primary verification: Netflix episode credits and on-screen cast listings.
- Secondary verification: Interviews and late-night clips where Kroll displays voices.
- Database cross-check: IMDb and fan wikis for exhaustive role lists (note: fan wikis may over-count cameo impressions).
Editor's note on counts
Different sources count roles differently: official episode credits are conservative (named roles and "additional voices"), press pieces cite highlight roles, and fan-maintained lists may aggregate every credited and uncredited instance-hence the variance in reported totals.
Everything you need to know about From Nick Birch To Maurice Big Mouth Voices Explained
Which characters does Nick Kroll voice?
Nick Kroll voices Nick Birch, Maury the Hormone Monster, Coach Steve, Lola Skumpy, and many additional recurring and one-off characters across Big Mouth's run.
How many characters has Kroll voiced?
Publicly available credits and interviews list Kroll voicing anywhere from a dozen in early promotions to multiple dozen roles across all seasons, with some fan sources claiming totals higher than 50 when including single-episode cameos; official season credits document at least a dozen named roles.
When did he first voice the characters?
Kroll first voiced Nick Birch and other roles at the series launch on September 29, 2017, continuing as the show expanded through subsequent seasons and special episodes.
Does Kroll voice both human and monster characters?
Yes; Kroll alternates between human leads (Nick Birch), adolescent peers (Lola), authority figures (Coach Steve), and fantastical beings (Maury the Hormone Monster), showcasing vocal range across genres.
Are there official credits listing all his roles?
Episode-by-episode credits on the show and databases such as IMDb list many of Kroll's characters, and press guides from early seasons listed a core set of about a dozen; later seasons and promotional materials increased that visible count.