Pendleton Ward Snow Golem Creator, Guest Voice Jeremy Shada Finn Voice John DiMaggio Jake Voice Hynden Walch Princess Bubblegum Voice Tom Kenny The Ice King Voice Isabella Acres Young Princess Bubblegum Guest Voice Justin Roiland Earl of Lemongrab Guest Voice Niki Yang BMO Guest Voice Maria Bamford Manifred, Chocoberry Guest Voice Dee Bradley Baker Cinnamon Bun Guest Voice Steve Little Peppermint Butler Guest Voice Fred Seibert Executive Producer Kelly Crews Producer Larry Leichliter Director Tom Herpich Writer Jesse Moynihan Writer