Adventure Time: Fionna and Cake (2023) Cast & Character Guide — No Spoilers | Who's That?
Who plays who in Adventure Time: Fionna and Cake (2023)? Browse a spoiler-free character guide with photos of every major character and the actors behind them, including Madeleine Martin, Roz Ryan, Tom Kenny.
- Fionna (voice) — played by Madeleine Martin
- Cake (voice) — played by Roz Ryan
- Simon Petrikov / Ice King (voice) / Simon Petrikov (voice) / Simon Petrikov / Winter King (Simon Voice) (voice) / Simon Petrikov / Banana Guard #2 / Penguin #1 / Penguin #2 (voice) / Simon Petrikov / Ice Thing (voice) / Winter King (Simon Voice) (voice) / Simon Petrikov / Dr. Prince (voice) / Simon Petrikov / Banana Guard #2 (voice) — played by Tom Kenny
- Additional Voices (voice) / Cinnamon Bun Mutant / Banana Guard Mutant #2 & #3 (voice) / Bellamy Bug / Banana Guard (voice) / The Heart of the Forest / Za'Baby (voice) / Russel (voice) / Wolf (voice) / ZA' Baby / Moon Demon King (voice) / Reindeer Boy Boss / Farmworld Chet / Trauma Jon (voice) / Dennis / Yellowsweets / Spirit (voice) / The Heart of the Forest / Frasier / Banana Guard #1 (voice) / Frasier / Snail / Yellowsweets (voice) / Pageling Dinosaur / Pageling Warrior / Dragon (voice) / Mudskipper / Bear / Goo Zombies (voice) / Ratbus / Banana Guard #1 (voice) — played by Dee Bradley Baker
- Finn (voice) / Babyworld Finn (voice) / Baby Finn (voice) / Finn / Woodpecker / Coffee Guy (voice) / Farmworld Finn / Ice Finn (voice) / Additional Voices (voice) / Finn / Farmworld Finn / Baby Finn (voice) / Finn / Babyworld Finn / Babyworld Cinnamon Bun (voice) — played by Jeremy Shada
- Ellis P / Norm (voice) / LSP / Ellis P / Norm (voice) / Ellis P / Alien Robot (voice) / Ellis P / Old Man Cake / Nerdy Alien (voice) / Ellis P / Pickle Reviewer #2 (voice) / Ellis P (voice) / Additional Voices (voice) / Ellis P / Pickle Reviewer #2 / Norm (voice) / Ellis P / Lumpy Space Princess / Banana Guard #3 (voice) / Ellis P / Venusian #2 (voice) — played by Pendleton Ward
- Princess Bubblegum (voice) / Princess Bubblegum / Vase Wizard / Ruby (voice) / Princess Bubblegum / Passing Child (voice) / Princess Bubblegum / Candy Queen (voice) / Bonnie (voice) / Princess Bubblegum / Child Wizard / Tourist #3 (voice) / Princess Bubblegum / Vase Wizard (voice) — played by Hynden Walch
- Scarab (voice) / Scarab / Kee-Oth (voice) / Scarab / Ashley (voice) / Scarab / Mini Scarabs / Skater Z (voice) / Scarab / Miss Rabow (voice) / Ashley (voice) — played by Kayleigh McKee
- Huntress Wizard (voice) — played by Ashly Burch
- Gary (voice) — played by Harvey Guillén
- Hunter (voice) / Hunter / Venusian #4 (voice) / Hunter / Skater Y (voice) / Hunter / Fern (voice) — played by Vico Ortiz
- Prismo (voice) / The Voice (voice) / Narrator / Brother #2 (voice) / Prismo / Burger (voice) / Karmic Worm (voice) / Prismo (1, 2, 3) (voice) / Karmic Worm / Giant Hamburger Mite / Vampire #1 (voice) — played by Sean Rohani
- Starchy (voice) / Additional Voices (voice) / Slime Princess / Finn's Kid #1 (voice) / Engagement Ring Princess / Wildberry Princess / Hotdog Princess / Slime Princess / Old Lady Cinnamom Bum (voice) / Gertie / Starchy (voice) / Farmworld Mom / Wildberry / Finn's Kid #1 (voice) / Starchy / Audience Member #1 (voice) / Banana Guard Mutant #1 (voice) / Gertie (voice) / Starchy / Party Patty / Venusian Cherub # 1 (voice) — played by Maria Bamford
- Marceline (voice) / Marceline / Celine (voice) — played by Olivia Olson
- Marshall Lee (voice) — played by Kris Kollins
- Lemoncarb #1 (voice) / Additional Voices (voice) / Normulon / Lemongrab (voice) / Lemoncarb #1 / Carla (voice) — played by Jinkx Monsoon
- DJ Flame (voice) / DJ Flame / Flame Prince (voice) — played by Manny Jacinto
- Astrid (voice) / Young Marceline / Astrid (voice) / Astrid / Bus Kid (voice) / Young Marceline (voice) — played by Audrey Bennett
- Marshall Lee (voice) / Marshall Lee / Monster Marshall (voice) — played by Donald Glover
- Gary Prince (voice) / Gary Prince / Monster Gary (voice) — played by Andrew Rannells