Will Arnett
BoJack Horseman / Butterscotch Horseman (voice) (12 eps)
Aaron Paul
Todd Chavez / AA Bird / Donkey Kid / Skippy (voice) (12 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) (12 eps)
Amy Sedaris
Princess Carolyn / Sharona (voice) (12 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 (12 eps)
Wendie Malick
Beatrice Horseman (voice) (6 eps)
Lake Bell
Katrina Peanutbutter (voice) (6 eps)
Keith Olbermann
Tom Jumbo-Grumbo (voice) (5 eps)
Sharon Horgan
Courtney Portnoy (voice) (4 eps)
Andre Braugher
Woodchuck Coodchuck-Berkowitz (voice) (4 eps)
Kimiko Glenn
Stefani Stilton (voice) (4 eps)
Raúl Esparza
Ralph Stilton (voice) (4 eps)
Kelen Coleman
Zoë / Zelda / Woodchuck's Advisor (voice) (3 eps)
Diedrich Bader
Judah Mannowdog (voice) (3 eps)
Jessica Biel
Jessica Biel (voice) (3 eps)
Patton Oswalt
Dr. Pepin (Walnut Springs) (voice) (2 eps)
Felicity Huffman
Felicity Huffman (voice) (2 eps)
Ben Schwartz
Rutabaga Rabitowitz (voice) (2 eps)
Adam Conover
A Ryan Seacrest Type / Paparazzi Blue Jay (voice) (2 eps)
Matthew Broderick
Joseph Sugarman (voice) (2 eps)
James Adomian
Stuart (voice) (2 eps)
Rami Malek
Flip McVicker / Jose Guerrero (voice) (2 eps)
David S. Jung
Gregory Hsung (voice) (2 eps)
Jay Pharoah
Dashawn Manheim (voice) (2 eps)
J.K. Simmons
Lenny Turtletaub (voice) (2 eps)
Natalie Morales
Yolanda Buenaventura (voice) (2 eps)
Paul Giamatti
TV BoJack (voice) (1 eps)
Jane Krakowski
Honey Sugarman (voice) (1 eps)
Rob Morrow
Barry Scheck (voice) (1 eps)
Natasha Rothwell
Clemelia Bloodsworth (voice) (1 eps)
David Chase
David Chase (voice) (1 eps)
Vincent D'Onofrio
Vincent D'Onofrio (voice) (1 eps)
Colman Domingo
Eddie (voice) (1 eps)
Grace Parra Janney
Tamera (voice) (1 eps)
Gabourey Sidibe
Tamara (voice) (1 eps)
Keith David
Lion Musician (voice) (1 eps)
Tim Gunn
Tim Gunn (voice) (1 eps)
Marc Jacobs
Sharc Jacobs (voice) (1 eps)
Harvey Fierstein
Harvey Fierstein (voice) (1 eps)
Mike Hollingsworth
(voice) (1 eps)
Kathy Najimy
Marcy (voice) (1 eps)
Archie Panjabi
Tilda Madison (voice) (1 eps)
Kevin Bigley
A Billy Bush Type (voice) (1 eps)
Audie Cornish
Diane's Ringtone (voice) (1 eps)
Robert Siegel
Diane's Ringtone (voice) (1 eps)
Fielding Edlow
Roxy (voice) (1 eps)
Ginger Gonzaga
Phoebe / Parrot Actress / Lead Ant Soldier (voice) (1 eps)
Nicholas Gonzalez
(voice) (1 eps)
RuPaul
Queen Antonia (voice) (1 eps)
Hannibal Buress
Miles (voice) (1 eps)
Jake Johnson
Oxnard (voice) (1 eps)
Patti LuPone
Mimi Stilton (voice) (1 eps)
Sir Mix-a-Lot
Sir Mix-a-Lot (voice) (1 eps)
Martin Short
Poppy Stilton (voice) (1 eps)
Kristen Bell
Ruthie (voice) (1 eps)
Raphael Bob-Waksberg
Charley Witherspoon (voice) (1 eps)
Kristin Chenoweth
Vanessa Gekko / Mrs. Teach-Bot (voice) (1 eps)
Sasheer Zamata
Jewelry Store Clerk (voice) (1 eps)
Majandra Delfino
Henrietta Platchkey (voice) (1 eps)
David Walton
Corbin Creamerman (voice) (1 eps)
Kate Berlant
Guide / Registrar (voice) (1 eps)
Kristen Schaal
Sabrina (voice) (1 eps)
Dave Segal
Paparazzi Robin (voice) (1 eps)
Lin-Manuel Miranda
Crackerjack Sugarman (voice) (1 eps)
Zach Braff
Zach Braff (voice) (1 eps)
Phil LaMarr
Judge (voice) (1 eps)
Abbi Jacobson
Emily (voice) (1 eps)
Cedric Yarbrough
Officer Meow-Meow Fuzzyface (voice) (1 eps)