Guest Stars J. Elvis Weinstein as Doctor Laurence "Larry" Erhardt Joel Hodgson as Ardy Rebecca Hanson as Synthia Tim Ryder as Bonehead #1 Zach Thompson as Bonehead #2 Russ Walko as Growler Grant Baciocco as M. Waverly Deanna Rooney as Doctor Donna St. Phibes J. Elvis Weinstein as Kiog