An FBI agent works with a refugee scientist and the Coast Guard to crack a Soviet spy ring in Boston.
Cast
George Murphy
Inspector James 'Jim' Belden
Finlay Currie
Professor Albert Kafer
Virginia Gilmore
Millie / Teresa Zalenko
Karl Stepanek
Alexi Laschenkov / Gregory Anders
Louisa Horton
Mrs. Elaine Wilben
Peter Capell
Chris Zalenko / Gino
Bruno Wick
Luther Danzig
Vilma Kurer
Mrs. Rita Foss
Ann Thomas
Philadelphia Suspect
George Roy Hill
Nicholas Wilben
Karl Weber
FBI Agent Charlie Reynolds
Michael Garrett
Michael Dorndoff aka Frank Torrance
Lotte Palfi Andor
Anna Kafer
Ernest Graves
Robert Martin
Robert Carroll
Boldany
Wolfgang Zilzer
August Helmuth
Bradford Hatton
Harry Mason
Rosemary Pettit
Mrs. Martin
Eva Condon
Landlady
Steve Mitchell
Samson
John Farrell
Unknown
Nancy Hale
Unknown
Westbrook Van Voorhis
Unknown
Mary Young
Unknown
Crew
Alfred L. Werker
Director
J. Edgar Hoover
Writer
Leo Rosten
Screenplay, Story
Angelo Ross
Editor
Peter Ratkevich
Assistant Editor
Joseph C. Brun
Director of Photography
Louis De Rochemont
Producer
Lothar Wolff
Associate Producer
Borden Mace
Associate Producer
George Stoetzel
Camera Operator
Edward Horton
Camera Operator
Shirlee Weingarten
Casting Director
Lodge Cunningham
Sound
Louis Applebaum
Original Music Composer
Jack Shaindlin
Music Director
Thomas Whitesell
Unit Manager
Herbert Andrews
Art Direction
