Spencer Tracy
James P. Curtayne
Pat O’Brien
Det. Vincent Ricks
Diana Lynn
Virginia 'Ginny' Curtayne
John Hodiak
District Attorney Louis Barra
Eduardo Ciannelli
Sol 'Knuckles' Lanzetta
James Arness
John Fordman 'Johnny' O'Hara
Yvette Duguay
Mrs. Katrina Lanzetta
Jay C. Flippen
Sven Norson
William Campbell
Frank Korvac
Richard Anderson
Jeff Chapman
Arthur Shields
Mr. O'Hara
Louise Lorimer
Mrs. Peg O'Hara
Henry O'Neill
Judge Keating
Ann Doran
Betty Clark, Policewoman
Emile Meyer
Captain Tom Mulvaney
Regis Toomey
Fred Colton, Police Sound Man
Katherine Warren
Mrs. William Sheffield (as Katharine Warren)
John Albright
Waiter (uncredited)
Tony Barr
Little Wolfie (uncredited)
Richard Bartlett
Tony Korvac (uncredited)
Brooks Benedict
Gambler (uncredited)
Leonard Bremen
Harry (uncredited)
Charles Bronson
Angelo Korvac (uncredited)
Mae Clarke
Receptionist (uncredited)
Michael Tolan
Vincent Korvac (as Lawrence Tolan) (uncredited)
Peter Mamakos
James Korvac (uncredited)
Sailor Vincent
William Sheffield (uncredited)
Ned Glass
Preliminary Hearing Judge (uncredited)
Bill Fletcher
Pete Korvac (uncredited)
Jack Kruschen
Uniformed Detective (uncredited)
William Schallert
Intern with Ambulance (uncredited)
