Pendleton Ward Lumpy Space Princess, Banana Guards Creator, Guest Voice, Writer Jeremy Shada Finn Voice John DiMaggio Jake Voice Hynden Walch Princess Bubblegum Voice Tom Kenny The Ice King Voice Maria Bamford Princess Princess Princess, Slime Princess Guest Voice Kent Osborne Bounce House Princess Guest Voice, Writer Niki Yang BMO Guest Voice Ava Acres Candy Girl Guest Voice Cole Sanchez Receptor Guest Voice, Writer James Baxter James Baxter Guest Voice Shyloh Oostwald Guest Voice Fred Seibert Executive Producer Kelly Crews Producer Somvilay Xayaphone Writer