Sam Jaffe
Doc Erwin Riedenschneider
John McIntire
Police Commissioner Hardy
William 'Wee Willie' Davis
Timmons
Mary Anderson
Police Broadcaster (voice) (uncredited)
Ray Bennett
Detective in Hardy's Office (uncredited)
David Bond
Father Sortine (uncredited)
Chet Brandenburg
Man at Line-Up (uncredited)
David Clarke
Mr. Atkinson (Railroad Man) (uncredited)
Henry Corden
Karl Anton Smith (uncredited)
Chuck Courtney
Red (Boy in Diner) (uncredited)
Gene Evans
Policeman at Ciavelli's Apartment (uncredited)
Fred Graham
Truck Driver (uncredited)
Don Haggerty
Det. Andrews (uncredited)
Thomas Browne Henry
James X. Connery (uncredited)
George Lynn
Detective at Ciavelli's Apartment (uncredited)
Strother Martin
William Doldy (uncredited)
Alberto Morin
Eddie Donato (uncredited)
Henry Rowland
Frank Schurz (Doc's Taxi Driver) (uncredited)
Tim Ryan
Jack (Police Clerk) (uncredited)
James Seay
Officer Janocek (uncredited)
J.J. Smith
Police Broadcaster (voice) (uncredited)
Helene Stanley
Jeannie (Girl in Diner) (uncredited)
Ray Teal
Cop in Car Barn Slugged by Dix (uncredited)