George Brent as Lt. Jim Stevens

Margaret Lindsay as Lou Winton

Eugene Pallette as Sgt. Boggs

Edward Ellis as Dr. Van de Water

Robert Barrat as Anderzian

Theodore Newton as Jack Winton

Murray Kinnell as Horton

Hobart Cavanaugh as Muggs Manton

Hugh Herbert as Manny Wales

Henry O'Neill as Inspector Donnelly

Dorothy Burgess as Dolly White

Frank Darien as Manley

Kenneth Thomson as Gordon Bates

Ken Murray as Mac

Spencer Charters as Teletype Man (uncredited)

Al St. John as Detainee Touching Cigarette Pack (uncredited)

Ben Taggart as Third-Degree Detective (uncredited)

Matt McHugh as Man picked up by police wagon (uncredited)