Guest Stars Martin Cummins as Tom Keller Nathalie Boltt as Penelope Blossom Ryan Robbins as Frank Andrews Molly Ringwald as Mary Andrews Shannon Purser as Ethel Muggs Daniel Yang as Dilton Doiley Barclay Hope as Clifford Blossom Sean Depner as Bret Weston Wallis Karl Walcott as Clay Walker Nicholas Barasch as Julian Blossom William MacDonald as Principal Featherhead Malcolm Stewart as Dr. Freiderich Werthers Garry Chalk as Al Fieldstone Matty Finochio as Milkman Co Starring Tom McBeath as Smithers Frances Flanagan as Mrs. Thornton