Obsidian

John DiMaggio

Jake / Additional Voices (voice)

Niki Yang

BMO / Additional Voices (voice)

Pendleton Ward

Lumpy Space Princess / Additional Voices (voice)

Olivia Olson

Marceline (voice)

Hynden Walch

Princess Bubblegum (voice)

Michaela Dietz

Glassboy (voice)

Dee Bradley Baker

Molto Larvo (voice)

Maria Bamford

Sandy (voice)

Audrey Bennett

Young Marceline (voice)

Jeff Bennett

Limeston / Choose Goose (voice)

Tom Kenny

Simon Petrikov (voice)

Erica Luttrell

Elise (voice)

Charlotte Nicdao

See-Thru Princess / Ancient Glass Princess (voice)

Kevin Michael Richardson

Sir Soda / Smudge (voice)

Jeremy Shada

Finn (voice)