Howard W. Koch
Director Edmond O'Brien
Director Aubrey Schenck
Producer

Edmond O'Brien
Det. Lt. Barney Nolan Marla English
Patty Winters John Agar
Det. Sgt. Mark Brewster Emile Meyer
Capt. Gunnarson Carolyn Jones
Beth, Girl at Bar Claude Akins
Fat Michaels Herbert Butterfield
Cabot, Reporter Hugh Sanders
Packy Reed William Schallert
Asst. Dist. Atty. Andy Tucker Richard Deacon
The Professor John Beradino
Gambler Being Booked Robert Bray
Detective

John C. Higgins
Writer William P. McGivern
Novel Richard Alan Simmons
Adaptation Paul Dunlap
Original Music Composer Gordon Avil
Director of Photography John F. Schreyer
Editor