Guest Stars Pendleton Ward voices Snail Andy Milonakis voices N.E.P.T.R. Pendleton Ward as Himself (Shelby) Dan Mintz voices T.V. Miguel Ferrer voices Death Steve Agee voices Science Cat Steve Agee voices Ancient Psychic Tandem War Elephant Jill Talley voices Maja Matthew Broderick voices Spirit of the Forest Jenny Slate voices Huntress Wizard Niki Hyun Yang voices Chocoberry