Peter Millard

as Professor Stokeld

as Gene Nelson

as Dr. Fain

as Albert

as Superintendent

as Russell Fuller

as Lester Majak

as (uncredited)

as Shirtless Grandpa

as C.B.S. Engineer

as Mr. Roth

as King of Nordin

as Mr. Munro

as John B.

as Bunden

as Anton