Nora Marlowe
Anna, the Menacing Housekeeper (uncredited)
Doreen Lang
Maggie - Thornhill's Secretary (uncredited)
John Beradino
Sergeant Emile Klinger (uncredited)
Ned Glass
Ticket Seller (uncredited)
Tol Avery
State Police Detective (uncredited)
Malcolm Atterbury
Man at Prairie Crossing (uncredited)
Maudie Prickett
Hotel Maid Elsie (uncredited)
Bess Flowers
Plaza Hotel Lounge Patron (uncredited)
Stanley Adams
Lieutenant Harding (uncredited)
Ernest Anderson
Porter on Twentieth Century Ltd. (uncredited)
Frank Wilcox
Herman Weltner (uncredited)
Brandon Beach
Man at Auction (uncredited)
Steve Carruthers
Man at Auction (uncredited)
Bill Catching
Auction Attendant (uncredited)
Walter Coy
U.S. Intelligence Agency Official (uncredited)
Jimmy Cross
Taxi Driver #1 (uncredited)
Patricia Cutts
Hospital Patient (uncredited)
Jack Daly
Train Steward (uncredited)
John Damler
Police Lieutenant (uncredited)
Lawrence Dobkin
U.S. Intelligence Agency Official (uncredited)
Tommy Farrell
Eddie - Elevator Starter (uncredited)
Jesslyn Fax
Train Passenger (uncredited)
Sally Fraser
Second United Nations Receptionist (uncredited)
Paul Genge
Lieutenant Hagerman (uncredited)
James Gonzalez
Man at Auction (uncredited)
Tom Greenway
Silent State Police Detective (uncredited)
Robert Haines
Man at United Nations Building (uncredited)
Stuart Hall
Train Passenger (uncredited)
Alfred Hitchcock
Man Who Misses Bus (uncredited)
Stuart Holmes
Hotel Lounge Patron (uncredited)
Eugene Jackson
Security Guard at Auction (uncredited)
Kenner G. Kemp
Man Leaving Office Building (uncredited)
Colin Kenny
Man at Auction (uncredited)
Carl M. Leviness
Man at United Nations Building (uncredited)
Alexander Lockwood
Judge Anson B. Flynn (uncredited)
Baynes Barron
Taxi Driver #2 (uncredited)
Thomas Martin
Train Passenger (uncredited)
Hans Moebus
Man at United Nations Building (uncredited)
Howard Negley
Conductor on Twentieth Century, Ltd. (uncredited)
Monty O'Grady
Man at United Nations Building (uncredited)
John Roy
Train Passenger (uncredited)
Jeffrey Sayre
Hotel Lounge Patron / Man at Mt. Rushmore Cafeteria (uncredited)
Scott Seaton
Man at Auction (uncredited)
Harry Seymour
Victor - Captain of Waiters (uncredited)
Jeremy Slate
Policeman at Grand Central Station (uncredited)
Olan Soule
Assistant Auctioneer (uncredited)
Harry Strang
Assistant Conductor (uncredited)
Arthur Tovey
Man at Auction (uncredited)
Robert B. Williams
Patrolman Waggoner (uncredited)
Paula Winslowe
Woman at Auction (uncredited)
Wilson Wood
Photographer at United Nations (uncredited)
Carleton Young
Fanning Nelson (uncredited)
Dick Johnstone
Courtroom Spectator (uncredited)
Bert Stevens
Man at United Nations Building (uncredited)
Alphonso DuBois
Man at United Nations Building (uncredited)
Len Hendry
Police Lieutenant (uncredited)
Rama Bai
Woman at United Nations Building (uncredited)
Roger C. Carmel
Tall Man in Crowd (uncredited)
Donna Douglas
Woman on Sidewalk (uncredited)
Caryl Lincoln
Auction Guest (uncredited)