Characters played by Victor McLaglen
Marty Malone
Characters played by William Gargan
Mike O'Mara
Characters played by Paul Kelly
Jerry Donovan
Characters played by Beatrice Roberts
Helen McCoy
Characters played by Frank Jenks
Sam
Characters played by John Gallaudet
Joe O'Mara
Characters played by Samuel S. Hinds
Justice Harrison
Characters played by Joe Downing
Frank Diamond
Characters played by Arthur Hoyt
Webster
Characters played by Scotty Beckett
Mike O'Mara as a Child
Characters played by Stanley Blystone
Policeman with Doorman
Characters played by Tommy Bupp
Jerry Donovan as a Child
Characters played by Neal Burns
Emergency Squad Man
Characters played by Howard Christie
Emergency Squad Man
Characters played by Drew Demorest
Cab Driver
Characters played by George DeNormand
Diamond's Henchman
Characters played by Mike Donovan
Policeman at Headquarters
Characters played by Bill Elliott
James Brewster
Characters played by Allen Fox
Emergency Squad Man
Characters played by Otto Fries
Detective
Characters played by Jack Gardner
Cab Driver
Characters played by Edward Gargan
Police Sgt. Enders
Characters played by Eddie Hall
Pedestrian in Front of Cigarette Club
Characters played by Oscar 'Dutch' Hendrian
Workman
Characters played by Robert Homans
Cop at Circle House
Characters played by Hugh Huntley
Louis
Characters played by Dickie Jones
Joe O'Mara as a Child
Characters played by Harvey Karels
Adagio Team Member
Characters played by Jack Kenney
Detective
Characters played by Carl Knowles
Cab Driver
Characters played by Mike Lally
Diamond's Henchman
Characters played by Larry McGrath
Cop
Characters played by Charles McMurphy
Police Captain
Characters played by Charles Murphy
Brown
Characters played by Spec O'Donnell
Kid
Characters played by David Oliver
Hank Andrews
Characters played by Lee Phelps
Cop at Warehouse
Characters played by Juanita Quigley
Helen McCoy as a Child
Characters played by Fred Rapport
Emergency Squad Man
Characters played by Mickey Rentschler
Marty Malone as a Child
Characters played by Jolane Reynolds
Adagio Team Member
Characters played by Addison Richards
Police Insp. Bresnahan
Characters played by Dick Rush
Plainclothesman
Characters played by Tiny Sandford
Cigarette Club Doorman
Characters played by Ralph Sanford
Policeman at Warehouse
Characters played by Charles Sherlock
Detective
Characters played by Charles Sullivan
Diamond's Henchman
Characters played by William Tannen
Master of Ceremonies
Characters played by Charles Teske
Adagio Team Member
Characters played by Jerry Tucker
Child
Characters played by Minerva Urecal
Maria - Jerry's Housekeeper
Characters played by Beryl Wallace
Hat Check Girl
Characters played by Norman Willis
Ed - Diamond's Henchman
Characters played by Si Wills
Si (Butler)
Characters played by Florence Wix
Night Club Patron
Characters played by Arthur Yeoman
Workman