Guest Stars Jessica Belkin as Carolyn Larkin Alex MacNicoll as Jerry Ross Gerald Downey as Mr. Larkin Maxwell Acee Donovan as Davy Fenstermacher Madison Lawlor as Joan Larkin Samuel Faraci as Benji Co Starring Paul Linke as Grandpop Noelle E Parker as Beverly Larkin Mary Linda Phillips as Grandmom Jax Daniel Morgan as Tom Larkin Uncredited Kurt Fuller as Dr. Zahn Jethro Posz as Polio Kid