Glory Curda

Y5 (voice)

John DiMaggio

Jake / Additional Voices (voice)

Jeremy Shada

Finn / 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)

Anthony Burch

Sweetie / Additional Voices (voice)

Ashly Burch

Darling / Additional Voices (voice)

Simone Giertz

CGO (voice)

John Hodgman

Shafter (voice)

Randall Park

Hugo (voice)

Stephen Root

Mr. M / Bob / Additional Voices (voice)

Michelle Wong

KS-2 (voice)

Olivia Olson

Marceline the Vampire Queen / Additional Voices (voice)

Michaela Dietz

Glassboy (voice)

Audrey Bennett

Young Marceline (voice)

Erica Luttrell

Elise / Additional Voices (voice)

Charlotte Nicdao

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

Kevin Michael Richardson

Sir Soda / Smudge / Additional Voices (voice)

Maria Bamford

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

Aryan Simhadri

Tiffany Oiler (voice)

Chris Fleming

New Death / Additional Voices (voice)

Dee Bradley Baker

Waffle Cone Trolls / Snow Golem (voice)

Tom Herpich

Mr. Fox (voice)

Kent Osborne

Joshua / Additional Voices (voice)

Ron Perlman

The Lich (voice)

Mace Montgomery Miskel

Pep (voice)

Chloe Coleman

Cadebra (voice)

Bex Taylor-Klaus

Blaine / Additional Voices (voice)

Bill Hader

Bufo (voice)

Toks Olagundoye

Dr. Caledonius (voice)

John Omohundro

Spader (voice)

Julia Butters

Larry / Additional Voices (voice)

Duncan Trussell

Ron James (voice)

Patti Harrison

Weapon Head (voice)

Dana Snyder

Potable Wizard / Life Giving Magus (voice)

Anthony Stewart Head

Wizard Con (voice)

Jeff Bennett

Limeston / Choose Goose / Additional Voices (voice)

Maurice LaMarche

Wizard Cop #1 / Skull (voice)

Cole Sanchez

Little Dude / Additional Voices (voice)

SungWon Cho

Brain Wizard / Wizard Cop #2 / Additional Voices (voice)

David Bradley

Old Finn (voice)

Andy Daly

Wyatt (voice)

Ron Lynch

Mr. Pig (voice)

Isabelle Fuhrman

Shoko (voice)

Corinne Kempa

Life (voice)

Jill Talley

Maja the Sky Witch (voice)

Tom Scharpling

Jermaine / Three Eyed Bird / Additional Voices (voice)

Edi Patterson

Momdebra / Cat Student (voice)

Sheng Wang

Dimension Wizard (voice)

Polly Lou Livingston

Tree Trucks (voice)

Steve Little

Peppermint Butler / Abracadaniel (voice)

Tom Kenny

Y5's Dad / Ice King / Simon Petrikov / Berdzerd / Additional