Jeremy Shada character Finn the Human (voice)
John DiMaggio character Jake the Dog (voice)
Niki Yang character BMO / Lady Rainicorn (voice)
Jackie Buscarino character Susan Strong (voice)
Tom Kenny character Ice King (voice)
Hynden Walch character Princess Bubblegum (voice)
Olivia Olson character Marceline the Vampire Queen (voice)
Stephen Root character Martin Mertens (voice)
Josh Fadem character Whipple the Sea-Dragon (voice)
Helena Mattsson character Alva (voice)
Reggie Watts character Vinny (voice)
Jasika Nicole character Freida (voice)
Livvy Stubenrauch character Young Kara/Susan (voice)
Sharon Horgan character Minerva (voice)
Laraine Newman character The Widow (voice)
Lennon Parham character Dr. Gross (voice)
Jasika Nicole character Frieda (voice)
Hayden Ezzy character Fern (voice)
