Credits
- Madeleine Martinas Fionna (voice) (20 Episodes)
- Roz Ryanas Cake (voice) (20 Episodes)
- Tom Kennyas Simon Petrikov / Ice King (voice) (10 Episodes) , Simon Petrikov (voice) (3 Episodes) , Simon Petrikov / Ice Thing (voice) (1 Episode) , Simon Petrikov / Banana Guard #2 / Penguin #1 / Penguin #2 (voice) (1 Episode) , Simon Petrikov / Dr. Prince (voice) (1 Episode) , Simon Petrikov / Banana Guard #2 (voice) (1 Episode) , Winter King (Simon Voice) (voice) (1 Episode) , Simon Petrikov / Winter King (Simon Voice) (voice) (1 Episode)
- Dee Bradley Bakeras Additional Voices (voice) (2 Episodes) , ZA' Baby / Moon Demon King (voice) (1 Episode) , Bellamy Bug / Banana Guard (voice) (1 Episode) , Reindeer Boy Boss / Farmworld Chet / Trauma Jon (voice) (1 Episode) , Russel (voice) (1 Episode) , Ratbus / Banana Guard #1 (voice) (1 Episode) , Pageling Dinosaur / Pageling Warrior / Dragon (voice) (1 Episode) , The Heart of the Forest / Frasier / Banana Guard #1 (voice) (1 Episode) , Mudskipper / Bear / Goo Zombies (voice) (1 Episode) , Dennis / Yellowsweets / Spirit (voice) (1 Episode) , Wolf (voice) (1 Episode) , Cinnamon Bun Mutant / Banana Guard Mutant #2 & #3 (voice) (1 Episode) , The Heart of the Forest / Za'Baby (voice) (1 Episode) , Frasier / Snail / Yellowsweets (voice) (1 Episode)
- Jeremy Shadaas Finn (voice) (4 Episodes) , Babyworld Finn (voice) (2 Episodes) , Baby Finn (voice) (2 Episodes) , Finn / Babyworld Finn / Babyworld Cinnamon Bun (voice) (1 Episode) , Finn / Farmworld Finn / Baby Finn (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Finn / Woodpecker / Coffee Guy (voice) (1 Episode) , Farmworld Finn / Ice Finn (voice) (1 Episode)
- Pendleton Wardas Ellis P / Norm (voice) (4 Episodes) , LSP / Ellis P / Norm (voice) (1 Episode) , Ellis P / Venusian #2 (voice) (1 Episode) , Ellis P (voice) (1 Episode) , Ellis P / Pickle Reviewer #2 (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Ellis P / Lumpy Space Princess / Banana Guard #3 (voice) (1 Episode) , Ellis P / Old Man Cake / Nerdy Alien (voice) (1 Episode) , Ellis P / Alien Robot (voice) (1 Episode) , Ellis P / Pickle Reviewer #2 / Norm (voice) (1 Episode)
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Top billed cast
Madeleine Martin
as Fionna (voice) (20 Episodes)
Roz Ryan
as Cake (voice) (20 Episodes)
Tom Kenny
as Simon Petrikov / Ice King (voice) (10 Episodes) , Simon Petrikov (voice) (3 Episodes) , Simon Petrikov / Ice Thing (voice) (1 Episode) , Simon Petrikov / Banana Guard #2 / Penguin #1 / Penguin #2 (voice) (1 Episode) , Simon Petrikov / Dr. Prince (voice) (1 Episode) , Simon Petrikov / Banana Guard #2 (voice) (1 Episode) , Winter King (Simon Voice) (voice) (1 Episode) , Simon Petrikov / Winter King (Simon Voice) (voice) (1 Episode)
Dee Bradley Baker
as Additional Voices (voice) (2 Episodes) , ZA' Baby / Moon Demon King (voice) (1 Episode) , Bellamy Bug / Banana Guard (voice) (1 Episode) , Reindeer Boy Boss / Farmworld Chet / Trauma Jon (voice) (1 Episode) , Russel (voice) (1 Episode) , Ratbus / Banana Guard #1 (voice) (1 Episode) , Pageling Dinosaur / Pageling Warrior / Dragon (voice) (1 Episode) , The Heart of the Forest / Frasier / Banana Guard #1 (voice) (1 Episode) , Mudskipper / Bear / Goo Zombies (voice) (1 Episode) , Dennis / Yellowsweets / Spirit (voice) (1 Episode) , Wolf (voice) (1 Episode) , Cinnamon Bun Mutant / Banana Guard Mutant #2 & #3 (voice) (1 Episode) , The Heart of the Forest / Za'Baby (voice) (1 Episode) , Frasier / Snail / Yellowsweets (voice) (1 Episode)
Jeremy Shada
as Finn (voice) (4 Episodes) , Babyworld Finn (voice) (2 Episodes) , Baby Finn (voice) (2 Episodes) , Finn / Babyworld Finn / Babyworld Cinnamon Bun (voice) (1 Episode) , Finn / Farmworld Finn / Baby Finn (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Finn / Woodpecker / Coffee Guy (voice) (1 Episode) , Farmworld Finn / Ice Finn (voice) (1 Episode)
Pendleton Ward
as Ellis P / Norm (voice) (4 Episodes) , LSP / Ellis P / Norm (voice) (1 Episode) , Ellis P / Venusian #2 (voice) (1 Episode) , Ellis P (voice) (1 Episode) , Ellis P / Pickle Reviewer #2 (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Ellis P / Lumpy Space Princess / Banana Guard #3 (voice) (1 Episode) , Ellis P / Old Man Cake / Nerdy Alien (voice) (1 Episode) , Ellis P / Alien Robot (voice) (1 Episode) , Ellis P / Pickle Reviewer #2 / Norm (voice) (1 Episode)
Hynden Walch
as Princess Bubblegum (voice) (6 Episodes) , Bonnie (voice) (1 Episode) , Princess Bubblegum / Child Wizard / Tourist #3 (voice) (1 Episode) , Princess Bubblegum / Passing Child (voice) (1 Episode) , Princess Bubblegum / Vase Wizard / Ruby (voice) (1 Episode) , Princess Bubblegum / Vase Wizard (voice) (1 Episode) , Princess Bubblegum / Candy Queen (voice) (1 Episode)
Kayleigh Mckee
as Scarab (voice) (6 Episodes) , Scarab / Kee-Oth (voice) (1 Episode) , Ashley (voice) (1 Episode) , Scarab / Ashley (voice) (1 Episode) , Scarab / Miss Rabow (voice) (1 Episode) , Scarab / Mini Scarabs / Skater Z (voice) (1 Episode)
Ashly Burch
as Huntress Wizard (voice) (10 Episodes)
Harvey Guillen
as Gary (voice) (10 Episodes)
Vico Ortiz
as Hunter (voice) (7 Episodes) , Hunter / Venusian #4 (voice) (1 Episode) , Hunter / Fern (voice) (1 Episode) , Hunter / Skater Y (voice) (1 Episode)
Sean Rohani
as Prismo (voice) (4 Episodes) , Narrator / Brother #2 (voice) (1 Episode) , Karmic Worm / Giant Hamburger Mite / Vampire #1 (voice) (1 Episode) , The Voice (voice) (1 Episode) , Prismo / Burger (voice) (1 Episode) , Prismo (1, 2, 3) (voice) (1 Episode) , Karmic Worm (voice) (1 Episode)
Supporting cast
69Maria Bamford
as Starchy (voice) (1 Episode) , Starchy / Audience Member #1 (voice) (1 Episode) , Slime Princess / Finn's Kid #1 (voice) (1 Episode) , Gertie / Starchy (voice) (1 Episode) , Banana Guard Mutant #1 (voice) (1 Episode) , Engagement Ring Princess / Wildberry Princess / Hotdog Princess / Slime Princess / Old Lady Cinnamom Bum (voice) (1 Episode) , Farmworld Mom / Wildberry / Finn's Kid #1 (voice) (1 Episode) , Gertie (voice) (1 Episode) , Starchy / Party Patty / Venusian Cherub # 1 (voice) (1 Episode) , Additional Voices (voice) (1 Episode)
Olivia Olson
as Marceline (voice) (6 Episodes) , Marceline / Celine (voice) (3 Episodes)
Kris Kollins
as Marshall Lee (voice) (9 Episodes)
Jinkx Monsoon
as Lemoncarb #1 (voice) (3 Episodes) , Additional Voices (voice) (2 Episodes) , Normulon / Lemongrab (voice) (1 Episode) , Lemoncarb #1 / Carla (voice) (1 Episode)
Manny Jacinto
as DJ Flame (voice) (6 Episodes) , DJ Flame / Flame Prince (voice) (1 Episode)
Audrey Bennett
as Astrid (voice) (3 Episodes) , Young Marceline (voice) (1 Episode) , Astrid / Bus Kid (voice) (1 Episode) , Young Marceline / Astrid (voice) (1 Episode)
Donald Glover
as Marshall Lee (voice) (5 Episodes) , Marshall Lee / Monster Marshall (voice) (1 Episode)
Andrew Rannells
as Gary Prince (voice) (5 Episodes) , Gary Prince / Monster Gary (voice) (1 Episode)
Chelsea Peretti
as Queenie (voice) (5 Episodes) , Frozen Turkey (voice) (1 Episode)
Erica Luttrell
as Hana Abadeer (voice) (6 Episodes)
Niki Yang
as BMO (voice) (4 Episodes) , Additional Voices (voice) (1 Episode) , BMO / Library Person (voice) (1 Episode)
Cree Summer
as Lemoncarb #2 (voice) (2 Episodes) , Additional Voices (voice) (2 Episodes) , Lemoncarb #2 / Director (voice) (1 Episode) , Lemoncarb #2 / Guard #1 (voice) (1 Episode)
Grey Delisle
as Simone (voice) (3 Episodes) , Ice Cream Queen / Rink Attendant (voice) (1 Episode) , Ice Queen / Muscle Princess / Breakfast Princess (voice) (1 Episode) , Additional Voices (voice) (1 Episode)
Andy Daly
as Kheirosiphon / Cliff (voice) (1 Episode) , Kheirosiphon / Wyatt (voice) (1 Episode) , Cliff / Hourglass (voice) (1 Episode) , Pop-Cop / Kheirosiphon / Gridface (voice) (1 Episode) , Gridface / Cliff / Record Store Man (voice) (1 Episode) , Kheirosiphon / Popcop (voice) (1 Episode)
Matthew Broderick
as Spirit Dream Warrior (voice) (5 Episodes)
Steve Little
as Additional Voices (voice) (2 Episodes) , Sam / Enchiridion (voice) (1 Episode) , Peptank / Sam (voice) (1 Episode) , Peptank (voice) (1 Episode)
Cole Sanchez
as Party God / Person 1 (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Pickle Reviewer #1 / Manager (voice) (1 Episode) , Moderator / Heckler #2 (voice) (1 Episode) , Party God / Pickle Reviewer #1 (voice) (1 Episode)
Anna Akana
as Fennel / MG (voice) (2 Episodes) , Fennel / Person 2 (voice) (1 Episode) , Fennel (voice) (1 Episode) , Fennel / Sound Guy (voice) (1 Episode)
Jeff Bennett
as Evil Choose Goose (voice) (2 Episodes) , Choose Bruce / Earmworld Dad (voice) (1 Episode) , Additional Voices (voice) (1 Episode)
Marc Maron
as Squirrel (voice) (2 Episodes) , Additional Voices (voice) (1 Episode) , Squirrel / Cheers Narrator (voice) (1 Episode)
Erica Mendez
as Additional Voices (voice) (1 Episode) , Skater #1 (voice) (1 Episode) , Ice Scout #1 (voice) (1 Episode) , Skater Fairies (voice) (1 Episode)
Will Pendarvis
as DJ Slime (voice) (3 Episodes) , DJ Slime / Clapper (voice) (1 Episode)
Cristina Valenzuela
as Skater Fairies (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Ice Scout #2 (voice) (1 Episode)
Felicia Day
as Betty (voice) (3 Episodes)
Phil Lamarr
as Dog Cake / Nightmare Cake / Beard Guy (voice) (1 Episode) , Goo Zombies / Dog Tourist / Tourist #4 (voice) (1 Episode) , Additional Voices (voice) (1 Episode)
Dave Mccormack
as Orbo (voice) (3 Episodes)
Mace Montgomery Miskel
as Pep (voice) (3 Episodes)
Patti Harrison
as Witch Wizard (voice) (3 Episodes)
Mickey Zacchilli
as Everplant / Little Destiny (voice) (1 Episode) , Additional Voices (voice) (1 Episode) , Little Destiny (voice) (1 Episode)
Sharon Horgan
as Additional Voices (voice) (2 Episodes) , Minerva / Minervabot (voice) (1 Episode)
Kumail Nanjiani
as Prismo (voice) (3 Episodes)
Rosie Brand
as Tree Wizard / Kirin (voice) (1 Episode) , Nova (voice) (1 Episode) , Tree Wizard (voice) (1 Episode)
Frank Collison
as Cosmic Owl (voice) (2 Episodes) , Cosmic Owl / Brother #1 (voice) (1 Episode)
Rumi C Jean Louis
as Young Marshall Lee (voice) (3 Episodes)
Open Mike Eagle
as Marshmallow Kid (voice) (3 Episodes)
Kent Osborne
as Damon (voice) (2 Episodes) , Damon / Dane (voice) (1 Episode)
Andy Merrill
as Blade Wizard / Banana Guard #3 (voice) (1 Episode) , Blade Wizard / Narrator (voice) (1 Episode) , Blade Wizard (voice) (1 Episode)
Dan Mintz
as TV (voice) (2 Episodes)
John Dimaggio
as Jake (voice) (2 Episodes)
Robbie Daymond
as TV Announcer (voice) (1 Episode) , Ice Prince / TV Announcer / Bar Guy (voice) (1 Episode)
Melissa Villasenor
as Candy Cuffs (voice) (1 Episode) , Babette / Heckler #1 (voice) (1 Episode)
Ron Perlman
as Lich (voice) (2 Episodes)
Tiffany Wu
as Jay / Finn's Kid #2 (voice) (1 Episode) , Additional Voices (voice) (1 Episode)
Sean Giambrone
as Shermy (voice) (2 Episodes)
Imani Hakim
as Beth (voice) (2 Episodes)
Eric Bauza
as Peanut / Tromo / Tire Seller (voice) (1 Episode) , Peanut / Banana Guard #1 (voice) (1 Episode)
James Kyson
as Big Destiny / Bandit (voice) (1 Episode) , Big Destiny / Handbag Helmet (voice) (1 Episode)
Billy Brown
as Vampire King (voice) (1 Episode) , Vampire King / Clock Archer (voice) (1 Episode)
Aleks Sennwald
as Venus Cosmic (voice) (1 Episode) , Venus Cosmic / Venusian #3 (voice) (1 Episode)
Elle Newlands
as Beatrice Buttler / Van Driver (voice) (1 Episode)
Jack Pendarvis
as Dirt Beer Guy (voice) (1 Episode)
Jim Cummings
as Additional Voices (voice) (1 Episode)
Brian David Gilbert
as Winter King / Singing Banana Guard (voice) (1 Episode)
Jenny Slate
as Huntress (voice) (1 Episode)
Stephen Root
as Martin Mertens (voice) (1 Episode)
Iggy Craig
as Casper (voice) (1 Episode)
Nia Castro
as Bonnie (voice) (1 Episode)
Colleen Smith
as Frankie / Lady Cutter (voice) (1 Episode)
Crispin Freeman
as Turbo Allen (voice) (1 Episode)
Jessica Dicicco
as Flame Princess (voice) (1 Episode)
Joe Pera
as Gordie (voice) (1 Episode)
Thurop Van Orman
as Wishy / Spider (voice) (1 Episode)
Kerri Kenney
as Old Lady Princess / MS. Cupcake / Lips Monster (voice) (1 Episode)
Kari Wahlgren
as Queen of Venus / Embolina (voice) (1 Episode)
Gaby Moreno
as Venus Cantrix (voice) (1 Episode)
Hayden Ezzy
as Fern (voice) (1 Episode)
Martin Olson
as Hunson Abadeer (voice) (1 Episode)
Bex Taylor Klaus
as Blaine (voice) (1 Episode)
Andy Milonakis
as Neptr / Vampire #2 (voice) (1 Episode)
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