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