Danny Wells

as Harold

as Eddie

as (voice)

as Mitch Bingham

as (voice) (26 episodes)

as Mr. Sampson

as Walter (1 episode)

as Mickey O'Toole (1 episode)

as Izzy's Uncle

as Boyle (1 episode)

as King Hugo III (voice) (78 episodes)

as Dook (voice) (52 episodes)

as Jack L. Warner

as Lt. Jackson Craig

as Commander Patrick Bratton (as Jack Daniel Wells)

as Ryan

as Dick Jennings

as Athletica M.C. (2 episodes)

as Guard (voice) (1 episode)

as Mercedes Driver

as Barker (1 episode)

as Luigi

as Luigi (65 episodes)

as Cyrus Spengler (voice) (1 episode)