Guest Stars Stockard Channing as Wendy Whipple Edi Patterson as Wanda Whipple Alice Tregonning as Susie Barnes Christopher Lloyd voices Pachacamac Julian Barratt as Jack Sinclair Co Starring Jaimi Barbakoff as Susie's Mom Fergus Craig as Susie's Dad Andy Heath voices Knuckles' Dad Adam Kerr as Greasy Faced Kid