Madeleine Martin
Fionna Campbell (voice)
Roz Ryan
Cake (voice)
Tom Kenny
Simon Petrikov / Ice King (voice)
Dee Bradley Baker
Additional Voices (voice)
Kayleigh McKee
Scarab (voice)
Sean Rohani
Prismo (voice)
Donald Glover
Marshall Lee (voice)
Andrew Rannells
Gary Prince (voice)
Jeremy Shada
Finn (voice)
Pendleton Ward
Ellis P (voice)
Jinkx Monsoon
Additional Voices (voice)
Audrey Bennett
Astrid (voice)
Maria Bamford
Banana Guard Mutant #1 (voice)
Jeff Bennett
Evil Choose Goose (voice)
Cristina Valenzuela
Ice Scout #2 (voice)
Erica Mendez
Ice Scout #1 (voice)
Cree Summer
Additional Voices (voice)
Felicia Day
Betty (voice)
Hynden Walch
Bonnie (voice)
Phil LaMarr
Goo Zombies / Dog Tourist / Tourist #4 (voice)
Vico Ortiz
Hunter (voice)
Chelsea Peretti
Queenie (voice)
Olivia Olson
Marceline (voice)
John DiMaggio
Jake (voice)
Sharon Horgan
Additional Voices (voice)
Niki Yang
BMO / Library Person (voice)
Robbie Daymond
TV Announcer (voice)
Grey DeLisle
Additional Voices (voice)
Marc Maron
Additional Voices (voice)
Andy Daly
Kheirosiphon / Wyatt (voice)
Melissa Villaseñor
Candy Cuffs (voice)
Steve Little
Additional Voices (voice)
Ron Perlman
Lich (voice)
Sean Giambrone
Shermy (voice)
Imani Hakim
Beth (voice)
Elle Newlands
Beatrice Buttler / Van Driver (voice)
Dan Mintz
TV (voice)
Jim Cummings
Additional Voices (voice)
Eric Bauza
Peanut / Tromo / Tire Seller (voice)
James Kyson
Big Destiny / Handbag Helmet (voice)
