Glory Curda (17)

Y5 (voice)

John DiMaggio (51)

Jake / Additional Voices (voice)

Jeremy Shada (23)

Finn / Additional Voices (voice)

Tom Kenny (57)

Y5's Dad / Ice King / Simon Petrikov / Berdzerd / Additional Voices (voice)

Hynden Walch (49)

Princess Bubblegum / Additional Voices (voice)

Niki Yang (35)

BMO / Football / Additional Voices (voice)

Pendleton Ward (37)

Lumpy Space Princess / Additional Voices (voice)

Ashly Burch (30)

Darling / Additional Voices (voice)

Simone Giertz (29)

CGO (voice)

John Hodgman (49)

Shafter (voice)

Randall Park (46)

Hugo (voice)

Stephen Root (68)

Mr. M / Bob / Additional Voices (voice)

Michelle Wong

KS-2 (voice)

Anthony Burch

Sweetie / Additional Voices (voice)

Olivia Olson (28)

Marceline the Vampire Queen / Additional Voices (voice)

Michaela Dietz (37)

Glassboy (voice)

Audrey Bennett

Young Marceline (voice)

Erica Luttrell (38)

Elise / Additional Voices (voice)

Charlotte Nicdao (28)

See-Thru Princess / Ancient Glass Princess / Additional Voices (voice)

Maria Bamford (49)

Margaret / Chocoberry / Mother Worm / Additional Voices (voice) / Sandy / Additional Voices (voice)

Kevin Michael Richardson (55)

Sir Soda / Smudge / Additional Voices (voice)

Aryan Simhadri (14)

Tiffany Oiler (voice)

Dee Bradley Baker (57)

Molto Larvo / Additional Voices (voice) / Waffle Cone Trolls / Snow Golem (voice) / Centipede / Crab / Additional Voices (voice)

Chris Fleming (33)

New Death / Additional Voices (voice)

Tom Herpich (40)

Mr. Fox (voice)

Kent Osborne (50)

Joshua / Additional Voices (voice)

Ron Perlman (70)

The Lich (voice)

Mace Montgomery Miskel (11)

Pep (voice)

Chloe Coleman (11)

Cadebra (voice)

Bex Taylor-Klaus (25)

Blaine / Additional Voices (voice)