Jeremy Shada
Finn the Human (voice)
279 episodes
John DiMaggio
Jake the Dog (voice)
279 episodes
Tom Kenny
Ice King (voice)
279 episodes
Hynden Walch
Princess Bubblegum (voice)
279 episodes
Olivia Olson
Marceline the Vampire Queen (voice)
279 episodes
Niki Yang
BMO / Lady Rainicorn (voice)
279 episodes
Pendleton Ward
Lumpy Space Princess (voice)
279 episodes
Polly Lou Livingston
Tree Trunks (voice)
279 episodes
Ava Acres
Young Marceline (voice) / Sunshine / Jamaica (voice) / Young Marcy (voice) / Jamaica (voice) / Young Marceline / Bunny Girl (voice) / Candy Kids (voice) / Candy Girl (voice)
8 episodes
Justin Roiland
Earl of Lemongrab (voice) / Earl of Lemongrab (voice) / Lemongrab 2 (voice) / Lemonpink (voice) / Gummy Fish (voice) / Lemonpink (voice) / Earl of Lemongrab (voice) / Starfish Martian (voice)
8 episodes
Kumail Nanjiani
Prismo (voice)
6 episodes
Emo Philips
Cuber (voice)
5 episodes
Ashly Burch
Breezy (voice) / Celina / Cheryl (voice) / Blacksmith / Scorpion (voice) / Cheryl / Celina / Super Porp Mutant (voice)
5 episodes
Madeleine Martin
Fionna (voice)
4 episodes
Roz Ryan
Cake (voice)
4 episodes
Kristen Schaal
Jake Jr (voice)
4 episodes
Dan Mintz
Tv (voice)
4 episodes
Isabella Acres
Young Princess Bubblegum (voice)
3 episodes
'Weird Al' Yankovic
Banana Man (voice)
3 episodes
Andy Milonakis
Neptr (voice)
3 episodes
Andy Samberg
Party Splat (voice) / Party Pat / Rap Bear (voice) / Party Pat (voice)
3 episodes
Neil Patrick Harris
Prince Gumball (voice)
3 episodes
Mark Hamill
Dark Magician (voice)
3 episodes
M. Emmet Walsh
Cosmic Owl (voice)
3 episodes
Kevin Michael Richardson
Additional Voices (voice) / Donny (voice) / The Storm (voice)
3 episodes
Lou Ferrigno
Billy (voice)
3 episodes
Kent Osborne
Bounce House Princess (voice) / Additional Voices (voice)
3 episodes
Henry Rollins
Bob Rainicorn (voice) / Cookie (voice)
3 episodes
Steve Little
Abracadaniel (voice) / Zombie Candy Heart / Peppermint Butler / Gumball Guardian #2 (voice)
3 episodes
Lauren Lapkus
Patience St. Pim (voice)
3 episodes
Kyla Kowalewski
Me-Mow (voice)
2 episodes
James Urbaniak
Rat King / Leaf Beard (voice) / Vice President Blowfish (voice)
2 episodes
George Takei
Ricardio (voice)
2 episodes
Thurop Van Orman
Tree Witch (voice) / Kent (voice)
2 episodes
Donald Glover
Marshall Lee (voice)
2 episodes
Grey DeLisle
Ice Queen (voice)
2 episodes
Ako Castuera
Canyon (voice)
2 episodes
Laura Silverman
Ethel Rainicorn (voice)
2 episodes
John Hodgman
Elder Plops (voice) / DJ Plop Drops (voice)
2 episodes
Kate Micucci
Chips (voice) / Wendy (voice)
2 episodes
Riki Lindhome
Ice Cream (voice) / Island Lady (voice)
2 episodes
Sharon Horgan
Minerva (voice)
2 episodes
Jenny Slate
Huntress Wizard (voice)
2 episodes
Jackie Buscarino
Susan Strong / Kara / Additional Voices (voice) / Eclair Boy (voice)
2 episodes
Felicia Day
Betty (voice)
2 episodes
Keith David
Flame King (voice) / Balthus (voice)
2 episodes
Dee Bradley Baker
Additional Voices (voice) / Mr. Cream Puff / Mr. Cupcake / Chet (voice)
2 episodes
Maurice LaMarche
Grand Master Wizard (voice) / Wizard Police (voice)
2 episodes
Alan Tudyk
Chatsberry (voice)
2 episodes
Cole Sanchez
Party God (voice) / Additional Voices (voice)
2 episodes
Livvy Stubenrauch
Young Kara (voice) / Bonnibel (voice)
2 episodes
Paul Reubens
Gnome Ruler/Dancing Bug (voice)
1 episode
Billy West
Goose / Erik Adamkinson / Mayor (voice)
1 episode
Brian Doyle-Murray
Prince Huge (voice)
1 episode
Alan Oppenheimer
Darren the Ancient Sleeper/Sun (voice)
1 episode
Beau Billingslea
The Moon (voice)
1 episode
Eric Bauza
Buttersotch Butler (voice)
1 episode
Willow Smith
Beth (voice)
1 episode
Sean Giambrone
Shermy (voice)
1 episode
Brian Baumgartner
Georgy / Private (voice)
1 episode
Toby Huss
Booboo / Commander (voice)
1 episode
David Ferguson
Lifeguard (voice)
1 episode
Hannibal Buress
Flame Prince (voice)
1 episode
Crispin Freeman
Turtle Prince (voice)
1 episode
Peter Serafinowicz
Lumpy Space Prince (voice)
1 episode
Elle Newlands
Butterscotch Butler (voice)
1 episode
Matthew Broderick
Dream Warrior (voice)
1 episode
Bert Youn
Lee (voice)
1 episode
Fred Stoller
Roy (voice)
1 episode
Donald Faison
Princess Cookie (voice)
1 episode
Kay Lenz
Bird Woman (voice)
1 episode
Maria Bamford
Manfried / Chocoberry / Candy Corn Girl (voice)
1 episode
Mark Proksch
Johnnie (voice)
1 episode
Marc Maron
Squirrel (voice)
1 episode
LeVar Burton
Bubble (voice)
1 episode
Melissa Villaseñor
Clerk (voice)
1 episode
Lucy Lawless
General Tarsal (voice)
1 episode
Alia Shawkat
Betsy (voice)
1 episode
Chelsea Peretti
Queen of Ooo (voice)
1 episode
Paul Scheer
Toronto (voice)
1 episode
Dave Foley
Warren Ampersand (voice)
1 episode
James Baxter
James Baxter (voice)
1 episode
J.G. Quintel
Blue Jay (voice)
1 episode
John Moschitta Jr.
Key-per (voice)
1 episode
Sam Marin
Gareth / Flying Lettuce Brother (voice)
1 episode
Collin Dean
Tiffany (voice)
1 episode
Steve Agee
Ash (voice)
1 episode
Martin Olson
Hunson Abadeer (voice)
1 episode
Pamela Adlon
Gunther (voice)
1 episode
Creed Bratton
Phlannel Boxingday (voice)
1 episode
Open Mike Eagle
Gingerbread Rapper / Rapper Chipmunk (voice)
1 episode
Stephen Root
Martin (voice)
1 episode
Laraine Newman
Widow / Additional Voices (voice)
1 episode
Lennon Parham
Additional Voices (voice)
1 episode
Steve Wolfhard
Slimy D (voice)
1 episode
Davey Johnson
Xergiok (voice)
1 episode
Zach King
Fizzbang (voice)
1 episode
Ron Perlman
The Lich (voice)
1 episode
