Jack Holt

G-Man Martin Galloway, posing as Bill Donovan

Wynne Gibson

Alice Segar, posing as Mrs. Donovan

C. Henry Gordon

Kilgour

Jack La Rue

Fred Drake

Edward Brophy

Lefty

William Pawley

Harry Grady

Arthur Hohl

Henchman Blackie

Robert Emmett O'Connor

Federal Agent Jim