Obsidian

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)

Olivia Olson

Marceline the Vampire Queen / Additional Voices (voice)

Michaela Dietz

Glassboy (voice)

Dee Bradley Baker

Molto Larvo / Additional Voices (voice)

Maria Bamford

Sandy / Additional Voices (voice)

Audrey Bennett

Young Marceline (voice)

Jeff Bennett

Limeston / Choose Goose / Additional Voices (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)