Roy Atwell

as Doc (voice) (uncredited)

as Arthur Tirrey - Casting Director

as Professor Washburn

as Bearded Man on Ship (uncredited)

as Mr. Pippensigal

as Salesman

as Professor Kockerthaler

as Arthur Sidney

as Himself

as Winston Gates

as Jim Conwell

as Jake Eben

as Dick Saunders

as Harkness Boyd

as Vale

as Jerry Sidon

as Marmaduke Grubb

as Horace Kane

as Julius Vandergulder

as Senator Sam H. Smiley