Jimmy Lydon

Paul Cartwright

Warren William

Brett Curtis

Sally Eilers

Virginia Cartwright

Regis Toomey

Dr. Vincent

Charles Arnt

Professor Muhlbach

George H. Reed

Benjamin

Jayne Hazard

Dorothy Cartwright

Jimmy Clark

George

Mary McLeod

Lydia

Pierre Watkin

Armstrong

Sonia Sorel

Miss Farber

Victor Potel

Mac

George Sherwood

Langdon

Gene Roth

Sparky

John Hamilton

Mr. Allen

Theresa Harris

Maid (uncredited)