| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Bart Jennett | Crew | Writing | Writer, Additional Writing | 2 |
 Bob Peterson | Crew | Crew | Creative Consultant | 10 |
Dan Molina | Crew | Editing | Editor | 20 |
 Ethan Sandler | Crew | Crew | Creative Consultant, Writer, Other | 10 |
Ferrell Barron | Crew | Production | Producer | 10 |
 John Sanford | Crew | Art | Additional Storyboarding | 1 |
Kyle Menke | Crew | Art | Storyboard Artist | 3 |
 Melissa Kurtz | Crew | Production | Line Producer, Producer | 10 |
Michelle Bochner Spitz | Crew | Writing | Writer | 2 |
Nicole Paradis Grindle | Crew | Crew | Thanks | 10 |
 Pete Docter | Crew | Crew | Thanks | 10 |
 Randy Newman | Crew | Sound | Main Title Theme Composer | 20 |
 Rob Gibbs | Crew | Crew | In Memory Of | 1 |
 Bobs Gannaway | Crew | Production | Executive Producer, Writer, Creator | 10 |
Sean Lurie | Crew | Production | Producer | 10 |
Troy Adomitis | Crew | Art | Storyboard Artist | 3 |
Evan Gore | Crew | Writing | Writer, Additional Writing | 1 |
Heather Lombard | Crew | Crew | Additional Writing, Writer | 2 |
 Kelsey Mann | Crew | Crew | Creative Consultant | 10 |
 Kevin Deters | Crew | Production | Executive Producer, Other | 10 |
Shannon Wood | Crew | Crew | Thanks | 10 |
 Stevie Wermers-Skelton | Crew | Sound | Other | 10 |
Tom Bernardo | Crew | Art | Storyboard Artist | 2 |
 Deepak Sethi | Crew | Writing | Staff Writer, Writer | 10 |
 Dominic Lewis | Crew | Sound | Original Music Composer | 20 |
Ricky Roxburgh | Crew | Crew | Additional Writing, Writer | 1 |
Sean Petrilak | Crew | Art | Storyboard Artist, Additional Storyboarding | 1 |
 Yunhao Zhang | Crew | Art | Additional Storyboarding, Storyboard Artist | 1 |
 Jason Lethcoe | Crew | Art | Additional Storyboarding, Storyboard Artist | 2 |
Tom Caulfield | Crew | Art | Storyboard Artist | 1 |
John Kazlauskas | Crew | Writing | Other, Writer | 10 |
Moss Lawton | Crew | Art | Additional Storyboarding, Storyboard Artist | 1 |
Jason Merck | Crew | Art | Art Direction | 10 |
Ken Morrissey | Crew | Art | Additional Storyboarding, Storyboard Artist | 1 |
Todd Kurosawa | Crew | Art | Storyboard Artist, Additional Storyboarding | 3 |
 Travis Braun | Crew | Writing | Idea | 1 |
Chris Ayers | Crew | Art | Art Direction | 20 |
Aaron Drown | Crew | Production | Casting | 20 |
Julia Pleasants | Crew | Production | Casting | 20 |
Casey Coffey | Crew | Art | Additional Storyboarding, Storyboard Artist | 2 |
Kaitlyn Ritter | Crew | Directing | Director | 5 |
James W. Suhr | Crew | Art | Storyboard Artist, Additional Storyboarding | 4 |
Jenn Strickland | Crew | Art | Storyboard Artist | 1 |
Isabelle Gedigk | Crew | Art | Storyboard Artist | 3 |
 Joy Regullano | Crew | Writing | Staff Writer, Writer | 10 |
Colleen Nuño-O'Donnell | Crew | Production | Casting | 20 |
Mike Austin | Crew | Art | Storyboard Artist, Additional Storyboarding | 3 |
Colleen Evanson | Crew | Writing | Writer, Story Editor | 2 |
Shane Zalvin | Crew | Directing | Director, Other, Additional Storyboarding | 10 |
Amy Lou I. Ferrer | Crew | Production | Production Manager | 10 |
Steven Umbleby | Crew | Art | Additional Storyboarding | 2 |
Jenessa Warren | Crew | Art | Storyboard Artist | 1 |
Victoria Harris | Crew | Art | Storyboard Artist, Additional Storyboarding | 1 |
David VanTuyle | Crew | Art | Additional Storyboarding | 1 |
Scotland D. Barnes | Crew | Art | Storyboard Artist | 1 |
Paul Cohen | Crew | Art | Storyboard Artist, Additional Storyboarding | 3 |
 Aisha Tyler | Cast | Actress | Millie (voice) | 6 |
Alan Tudyk | Cast | Actor | M.E.R.C. Official 1 / Alarmed Monster (voice) | 1 |
 Alanna Ubach | Cast | Actress | Cutter (voice) | 7 |
 Alfred Molina | Cast | Actor | Professor Knight (voice) | 2 |
 Billy Crystal | Cast | Actor | Mike (voice) | 20 |
Bob Peterson | Cast | Actor | Roz (voice) | 3 |
 Bob Uecker | Cast | Actor | Bob Yucker (voice) | 1 |
 Bonnie Hunt | Cast | Actress | Ms. Flint (voice) | 9 |
 Carlos Alazraqui | Cast | Actor | John Rivera (voice) | 1 |
 Corey Burton | Cast | Actor | Slappy (voice) | 3 |
 Curtis Armstrong | Cast | Actor | Mr. Crummyham (voice) | 4 |
Dan Molina | Cast | Actor | Ethan (voice) | 1 |
 Danny Trejo | Cast | Actor | Terry (voice) | 1 |
 Dee Bradley Baker | Cast | Actor | Banana Bread / Chompy / Swamp Man / Angry Citizen (voice) | 1 |
Ethan Sandler | Cast | Actor | Stubby Lizzardo (voice) | 2 |
Ferrell Barron | Cast | Actor | Additional Monsters (voice) | 1 |
 Gabriel Iglesias | Cast | Actor | Gary (voice) | 2 |
 Henry Winkler | Cast | Actor | Fritz (voice) | 20 |
 Jenifer Lewis | Cast | Actress | Grandma Tuskmon (voice) | 5 |
Jennifer Coolidge | Cast | Actress | Marilyn (voice) | 2 |
 Jennifer Tilly | Cast | Actress | Celia Mae (voice) | 8 |
 Joe Lo Truglio | Cast | Actor | Jack (voice) | 5 |
 John Goodman | Cast | Actor | Sulley (voice) | 18 |
 John Michael Higgins | Cast | Actor | Argus Blinks (voice) | 1 |
 John Ratzenberger | Cast | Actor | Bernard / Arodable (voice) | 1 |
 Kurtwood Smith | Cast | Actor | Alistair Clawbottom (voice) | 3 |
 Nathan Fillion | Cast | Actor | Johnny (voice) | 8 |
 Paula Pell | Cast | Actress | Sunny (voice) | 4 |
 Rhys Darby | Cast | Actor | Roger Rogers (voice) | 8 |
Bobs Gannaway | Cast | Actor | Otis / Roto / Bobs (voice) | 1 |
 Roxana Ortega | Cast | Actress | Celia Mae / Reporter 4 (voice) | 1 |
 Ryan McPartlin | Cast | Actor | Bully Monster 1 / Mr. April (voice) | 1 |
 Stephen Stanton | Cast | Actor | Smitty / Needleman / Sanderson / Reporter 2 (voice) | 1 |
 Steve Buscemi | Cast | Actor | Randall (voice) | 2 |
 Ben Feldman | Cast | Actor | Tylor (voice) | 20 |
 Bobby Moynihan | Cast | Actor | Chet (voice) | 6 |
Kevin Deters | Cast | Actor | DJ Slinky Stinkwell (voice) | 1 |
 Kimberly Brooks | Cast | Actress | Additional Monsters (voice) | 3 |
 Michaela Dietz | Cast | Actress | Snore (voice) | 1 |
 Mindy Kaling | Cast | Actress | Val (voice) | 20 |
 Richard Ayoade | Cast | Actor | Declan (voice) | 4 |
 Romi Dames | Cast | Actress | Lanky (voice) | 1 |
Stevie Wermers-Skelton | Cast | Actress | Swamp Woman (voice) | 1 |
 Aubrey Plaza | Cast | Actress | Claire (voice) | 3 |
 Danny Pudi | Cast | Actor | Evan (voice) | 1 |
 Ali Wong | Cast | Actress | Jill (voice) | 5 |
 Emily Peterson | Cast | Actress | Restaurant Patrons (voice) | 1 |
 Lucas Neff | Cast | Actor | Duncan (voice) | 18 |
 Max Mittelman | Cast | Actor | Reporter 1 / Additional Monsters (voice) | 1 |
 Devin Bright | Cast | Actor | Marcus (voice) | 1 |
 Jimmy Tatro | Cast | Actor | Skyler (voice) | 3 |
 Julia Butters | Cast | Actress | Lorelei (voice) | 2 |
 Dave Wittenberg | Cast | Actor | Additional Monsters (voice) | 1 |
 Cooper J. Friedman | Cast | Actor | Alexander (voice) | 1 |
 Christopher Swindle | Cast | Actor | Phlegm | 1 |
 Bowen Yang | Cast | Actor | Carter (voice) | 2 |
 Isabella Abiera | Cast | Actress | Gurty (voice) | 1 |
 Lucian Perez | Cast | Actor | Oscar (voice) | 1 |
 Alan Kim | Cast | Actor | Ben (voice) | 4 |
 Hadley Gannaway | Cast | Actress | Thalia (voice) | 1 |
 Janelle James | Cast | Actress | Joy (voice) | 4 |
Cody Rigsby | Cast | Spin-Energy Instructor Monster (voice) | 1 | |
Rania Sharkawy | Cast | Avani (voice) | 1 | |
 Nohely Quiroz | Cast | Actress | Additional Monsters (voice) | 1 |
 Natalie Lashkari | Cast | Actress | Monster Kids (voice) | 1 |
Sander Argabrite | Cast | Actor | J.J. (voice) | 3 |
| Person | Type | Job | Role(s) | Episodes |
