Mark Stevens
— Officer Rocky Barnes
Edmond O'Brien
— Officer Dan Purvis
Gale Storm
— Katharine 'Kate' Mallory
Donald Buka
— Ritchie Garris
Gale Robbins
— Terry Romaine
Anthony Ross
— Police Lt. Masterson
Roland Winters
— Leo Cusick
Tito Vuolo
— Romano
Grazia Narciso
— Mrs. Romano
Madge Blake
— Mrs. Mallory
Lora Lee Michel
— Kathy Blake
Jack Del Rio
— Louis Franissi
Philip Van Zandt
— Joe Quist
Cliff Bailey
— Police Sgt. Bailey
Tony Barr
— Harry Yost
Peter Mamakos
— 'Cootie' Adams
Ric Roman
— Rod Peters (as Earl Breitbard)
Wheaton Chambers
— Building Superintendent Blake
Frances Morris
— Mrs. Blake - Superintendent's Wife
James Brown
— Officer Haynes (uncredited)
Billy Gray
— Peter J. 'Petey' Conklin (uncredited)
Brick Sullivan
— Policeman (uncredited)
Tony Taylor
— Thurlow Conklin (uncredited)
Guy Way
— Reporter (uncredited)