J. Carrol Naish
'Lefty' Tate
George Chesebro
Sardo - Walsh's Henchman
Herbert Rawlinson
J.W. Keaton
Warren Hymer
Terence 'Midget' Regan
Earl Dwire
Secretary
John Ince
One of Keaton's Lieutenants
Theodore von Eltz
Mr. Walsh
Reed Howes
FBI Agent Bob Arnold
Harry Harvey
Short Pool Player
Robert Homans
Fat Pool Player
Donald Cook
FBI Agent Dave Elliott
Morgan Wallace
H. Van Cleve
Evalyn Knapp
Maxine Travers
Frank Marlowe
G-Man
Kane Richmond
J.W. 'Jack' Keaton, Jr.
Al Bridge
Hanover - Walsh's Henchman
Lee Phelps
One of Keaton's Lieutenants
Lynton Brent
FBI Agent Connors
Donald Kerr
Reporter
Allan Cavan
One of Keaton's Lieutenants
Alphonse Martell
Jeweller
James P. Burtis
Lacey
Edward Hearn
Insp. Stone
Clay Clement
Insp. Arthur M. Preston
Monte Carter
Giuseppe Tomasso Giaconelli
Tom Brower
Elderly Man
David Worth
FBI Agent
Lillian Castle
Mary - Old Barfly