Craig Stevens

Carl Becker

Faye Emerson

Paula Fengler

John Ridgely

John Trent

Charles Lang

Jim Jackson

Robert Warwick

Dr. Woodford

Frank Reicher

Henry Bremmer

Rex Williams

Hans

Frank Wilcox

Senior Agent

George Meeker

Rudolph Dietz

Roland Drew

Fred Blosser - Chauffeur

Addison Richards

C.G. Travers

Cliff Clark

Detective Capt. Jarrett

Monte Blue

Hugo Mehl

Ray Teal

Casey (uncredited)