"New York Assistant District Attorney Howard Malloy is working hard on investigation about a series of murders related to an extremist group."
Franchot Tone
as Howard Malloy
Jean Wallace
as Barbara Whitfield
Myron McCormick
as Charles Riggs
Marc Lawrence
as Angelo Agostini
Winifred Lenihan
as Mrs. Hartley
Doe Avedon
as Caroline Riggs
Hedley Rainnie
as Sigmund Kosterich
Walter Vaughan
as District Attorney Walker
George Breen
as Knuckles
Robert Gist
as Tommy Quigley
Hester Sondergaard
as Mrs. Borg
Luella Gear
as Pet Shop Owner
Alexander Campbell
as Pemberton
Robert Noe
as Waldron
Alexander Lockwood
as Nichols
Alan MacAteer
as Museum Guard
Marlene Dietrich
as Nightclub Patron (uncredited)
Henry Fonda
as Nightclub Waiter (uncredited)
Brenda Frazier
John Garfield
as Loafer with Newspaper (uncredited)
Marsha Hunt
as Mrs. Hartley's Secretary (uncredited)
Leonard Lyons
as Newspaper Columnist (uncredited)
Fletcher Markle
Burgess Meredith
as Jack - Bartender (uncredited)
Everett Sloane
as Sam - Milkman (uncredited)
Don Malkames
Director of Photography
Director
William L. Nemeth
Unit Manager
Sal Scoppa Jr.
Assistant Director
John Roeburt
Story
Robert Matthews
Editor
Harry Lee Danziger
Producer
Robert W. Stringer
Original Music Composer
Edward J. Danziger
Vincent McConnor
Screenplay