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)