Will Arnett
BoJack Horseman / Butterscotch Horseman (voice) (16 eps)
Aaron Paul
Todd Chavez / AA Bird / Donkey Kid / Skippy (voice) (16 eps)
Alison Brie
Diane Nguyen / Vincent Adultman / Kevin / Samantha The Food Critic / Olivia / Joelle Clark / Otter / Cow Waitress / Sarah Lynn's Assistant / Ship Co-Captain / Golden Snowflake Announcer / Nurse / Waitress / Cow Waitress / Announcer (voice) (16 eps)
Amy Sedaris
Princess Carolyn / Sharona (voice) (16 eps)
Paul F. Tompkins
Mr. Peanutbutter / Marv / Virgil Van Cleef / Prescott / Andrew Garfield / Sandro / Dog Valet / Underwater Man / Concerned Man / Janitor / Bartholomew Scagsworth / Sloth Lawyer / Blimp Co-Pilot / Abortion Doctor / George Tickle / Giant Chocolate Oscar Guy (16 eps)
LaKeith Stanfield
Guy (voice) (7 eps)
Julia Chan
Pickles Aplenty (voice) (6 eps)
Diedrich Bader
Judah Mannowdog (voice) (6 eps)
Hilary Swank
Joey Pogo (voice) (5 eps)
Sam Richardson
Dr. Champ (voice) (5 eps)
Echo Gillette
Maude (voice) (5 eps)
Paget Brewster
Paige Sinclair (voice) (4 eps)
Stanley Tucci
Herb Kazzaz (voice) (4 eps)
Will Choi
Pastiches Receptionist (voice) (3 eps)
Daniele Gaither
(voice) (3 eps)
Geraldine Viswanathan
Tawnie (voice) (3 eps)
Patton Oswalt
Pinky Penguin / Comedian (voice) (3 eps)
Kristen Schaal
Sarah Lynn (voice) (3 eps)
Max Greenfield
Maximillian Banks (voice) (3 eps)
Jaime Camil
Jorge Chavez (voice) (3 eps)
J.K. Simmons
Lenny Turtletaub (voice) (3 eps)
Marcia Gay Harden
Denise (voice) (2 eps)
Lana Condor
Casey The Assistant (voice) (2 eps)
Raphael Bob-Waksberg
Charley Witherspoon (voice) (2 eps)
James Adomian
Stuart (voice) (2 eps)
Olivia Wilde
Charlotte Moore (voice) (2 eps)
Jaboukie Young-White
Terry (voice) (2 eps)
Phoebe Robinson
Dean Squooshyface (voice) (2 eps)
Asif Ali
Gaz The Accountant (2 eps)
Nicole Holofcener
Indie Filmmaker Nicole Holofcener (voice) (2 eps)
Keith Olbermann
Tom Jumbo-Grumbo (voice) (2 eps)
Margo Martindale
Character Actress Margo Martindale (voice) (2 eps)
Kiersey Clemons
Jameson (voice) (1 eps)
Cindy Crawford
Cindy Crawfish (voice) (1 eps)
Jay Hernandez
Jay Hernandez (voice) (1 eps)
Tim Meadows
Jameson's Father (voice) (1 eps)
Jeanne Tripplehorn
Jeanne "Joan" Tripplehorn (voice) (1 eps)
Lee Daniels
Flea Daniels (voice) (1 eps)
Emma Adele Galvin
Moth Executive / Nanny / Harried Kangaroo Mother (voice) (1 eps)
Chloë Grace Moretz
Chloë Grace Moretz (voice) (1 eps)
Michael Barbaro
Diane's Ringtone (voice) (1 eps)
Sonia Denis
Jen (voice) (1 eps)
Janeane Garofalo
Isabelle (voice) (1 eps)
Patti Harrison
Peekaboo The Necky Giraffe (voice) (1 eps)
Tom Kenny
Vert / Baseball Announcer (voice) (1 eps)
Stephen Root
Jeremiah Whitewhale (voice) (1 eps)
Cree Summer
Ollie / Barbara The Barnacle (voice) (1 eps)
Zehra Fazal
Ilana #1 / Ilana #2 / Demi Aplenty (voice) (1 eps)
Alexis Guerreros
Eduardo / Greg (voice) (1 eps)
John Witherspoon
Franco Aplenty (voice) (1 eps)
Philip Rosenthal
Danny Bananas (voice) (1 eps)
Nicole Sullivan
(voice) (1 eps)
Jean Villepique
Tracy The Assistant (voice) (1 eps)
Okieriete Onaodowan
Mike (voice) (1 eps)
Joel Kim Booster
Airport Worker (voice) (1 eps)
Natalie Walker
Morgan The Snake (voice) (1 eps)
Stephen Agyei
(voice) (1 eps)
Stephanie Beatriz
Gina Cazador / Nancy The Lizard / Female Executive (voice) (1 eps)
Jermaine Fowler
Pete Repeat / Male Executive #1 / Male Executive #2 (voice) (1 eps)
Matthew Rhys
Justin Kenyon (voice) (1 eps)
Adam Conover
Paparazzi Blue Jay (voice) (1 eps)
Ben Schwartz
Rutabaga Rabitowitz / Tawnie's Boyfriend (voice) (1 eps)
Christine Baranski
Amanda Hannity (voice) (1 eps)
Kristin Chenoweth
Vanessa Gekko (voice) (1 eps)
'Weird Al' Yankovic
Captain Peanutbutter (voice) (1 eps)
Kimiko Glenn
Stefani Stilton (voice) (1 eps)
Dave Segal
Paparazzi Robin (voice) (1 eps)
Maya Erskine
Ivy Tran (voice) (1 eps)
Ilana Glazer
Penny Carson (voice) (1 eps)
David Chang
Elefino Customer (voice) (1 eps)
Wendie Malick
Beatrice Horseman (voice) (1 eps)
Brandon T. Jackson
Corduroy Jackson Jackson (voice) (1 eps)
Lin-Manuel Miranda
Crackerjack Sugarman (voice) (1 eps)
Zach Braff
Zach Braff (voice) (1 eps)
Samantha Bee
Samantha Bee (voice) (1 eps)
Bobby Cannavale
Vance Waggoner (voice) (1 eps)
Chloe Dykstra
Helen Chavez (voice) (1 eps)
Anjelica Huston
Angela Diaz (voice) (1 eps)
Phil LaMarr
Judge (voice) (1 eps)
Ed Helms
Kyle (voice) (1 eps)
Audra McDonald
Mother Superior (voice) (1 eps)
Cedric Yarbrough
Officer Meow-Meow Fuzzyface (voice) (1 eps)