John DiMaggio
Jake / Additional Voices (voice)
Jeremy Shada
Finn / Additional Voices (voice)
Tom Kenny
Y5's Dad / Ice King / Simon Petrikov / Berdzerd / Additional Voices (voice)
Hynden Walch
Princess Bubblegum / Additional Voices (voice)
Niki Yang
BMO / Football / Additional Voices (voice)
Pendleton Ward
Lumpy Space Princess / Additional Voices (voice)
Dee Bradley Baker
Molto Larvo / Additional Voices (voice)
Jeff Bennett
Choose Goose / Additional Voices (voice)
Cole Sanchez
Goblin / Additional Voices (voice)
Maria Bamford
Margaret / Chocoberry / Mother Worm / Additional Voices (voice)
Steve Little
Turtle Princess / Peppermint Butler / Gate Guardian / Additional Voices (voice)
Ashly Burch
Darling / Additional Voices (voice)
Stephen Root
Mr. M / Bob / Additional Voices (voice)
Anthony Burch
Sweetie / Additional Voices (voice)
Olivia Olson
Marceline the Vampire Queen / Additional Voices (voice)