Police Commissioner Thatcher Colt
Anthony 'Tony' Abbot (as Ricki Vallin)
Everett P. Digberry
District Attorney Bill Dougherty
Miss Spencer
Capt. Edgar Walters / Frank Galloway
Nina Politza
Enrico Lombardi
Police Captain Mike Flynn
Officer Murphy
Police Captain Tom Henry
Samuel Wilkins
Antonio Spogucci (as Joseph M. De Villard)
Guiseppe Bartarelli (as Jack Vanaire)
John Martin George (as William Castello)
Officer Lou Levinsky (as Harry Clarke)
Apartment Manager (as Lou LeRoy)
Nicodemus J. Brown
Petunia
Coroner
Joe Morgan
Police Sergeant Flanagan (as Casey McGregor)
Hotel Manager Stevens
Lombardi's Police Escort (uncredited)