Diễn viên
Fred MacMurray
Trooper Ross Martin
Frank Craven
Sheriff Peter Arnot
Alfred Delcambre
Trooper Jamison
Guy Standing
John Vilker, alias Prof. Anthony
Marina Koshetz
Nan Vilker
Charles Cahill Wilson
Trooper Captain Ryan
John Howard
Trooper Carney
Jack Cheatham
Radio Sgt. Meyers
Ann Sheridan
Mary Adams
William Frawley
Training Sgt. Barrel
Nora Cecil
Granny Adams
Joe Sawyer
Whitey, burly henchman
Mack Gray
Smoke, thin henchman
Eddy Chandler
Trooper Haynes, Car 45
Howard Wilson
Dutch
Hector V. Sarno
French Charley
Dean Jagger
Trooper Jim Burton
Robert Kent
Trooper Blatzky
Eddie Dunn
Mack
Russell Hopton
Dispatch Operator Harper