Billy Mauch

Penrod

Robert J. Mauch

Danny

Dick Purcell

Tex Boyden

Gene Lockhart

Mr. Schofield

Kathleen Lockhart

Mrs. Schofield

Hugh O'Connell

Professor Caligostro

Charles Halton

Mr. Bitts

Bernice Pilot

Delia

Jackie Morrow

Rodney Bitts

Philip Hurlic

Verman

Carole Landis

Girl at Fair (uncredited)

Sonny Bupp

Monk (uncredited)

Glen Cavender

Truck Driver Giving Penrod a Lift (uncredited)

James Conaty

Dinner Guest (uncredited)

Jack Cunningham

Jack (uncredited)

Lewis Seiler