Jean Hersholt as Dr. Emil Brandt

Wynne Gibson as Mrs. Frieda Brandt

Stuart Erwin as Dan McKee

Frances Dee as Doris Brandt

Gordon Westcott as Gilbert Reid

Robert Elliott as Captain Tim Riley

David Landau as Lieutenant Frank Martin

William Janney as James Brandt

Bodil Rosing as Hilda Ericson

Torben Meyer as Eric Ericson

Samuel S. Hinds as Philip Ames

Eddie Baker as Detective (uncredited)

Marion Byron as Bridge Player (uncredited)

Harry Depp as Police Stenographer (uncredited)

Arthur Hohl as Announcer (uncredited)

Isabel Jewell as Bridge Player (uncredited)

Fred Kelsey as Police Guard (uncredited)

Pat McKee as Desk Sergeant (uncredited)

Harry Strang as Man at Police Station (uncredited)