Roger Thornhill
Eve Kendall
Phillip Vandamm
Clara Thornhill
Professor
Mrs. Townsend
Lester Townsend
Leonard
Valerian
Victor Larrabee
Licht
Auctioneer
Dr. Cross
Sergeant Flamm
Captain Junket
Charley
Anna, the Menacing Housekeeper (uncredited)
Maggie - Thornhill's Secretary (uncredited)
Sergeant Emile Klinger (uncredited)
Ticket Seller (uncredited)
State Police Detective (uncredited)
Man at Prairie Crossing (uncredited)
Hotel Maid Elsie (uncredited)
Plaza Hotel Lounge Patron (uncredited)
Lieutenant Harding (uncredited)
Farmer (uncredited)
Porter on Twentieth Century Ltd. (uncredited)
Herman Weltner (uncredited)
Man at Auction (uncredited)
Man at Auction (uncredited)
Shaving Man (uncredited)
Auction Attendant (uncredited)
U.S. Intelligence Agency Official (uncredited)
Taxi Driver #1 (uncredited)
Hospital Patient (uncredited)
Train Steward (uncredited)
Police Lieutenant (uncredited)
U.S. Intelligence Agency Official (uncredited)
Eddie - Elevator Starter (uncredited)
Train Passenger (uncredited)
Bald Bidder (uncredited)
Second United Nations Receptionist (uncredited)
Lieutenant Hagerman (uncredited)
Man at Auction (uncredited)
Silent State Police Detective (uncredited)
Man at United Nations Building (uncredited)
Train Passenger (uncredited)
Man Who Misses Bus (uncredited)
Hotel Lounge Patron (uncredited)
Security Guard at Auction (uncredited)
Waiter (uncredited)
Man Leaving Office Building (uncredited)
Mrs. Finlay (uncredited)
Man at Auction (uncredited)
Man at United Nations Building (uncredited)
Judge Anson B. Flynn (uncredited)
Taxi Driver (uncredited)
Taxi Driver #2 (uncredited)
Train Passenger (uncredited)
Plaza Valet (uncredited)
Attendant (uncredited)
Hotel Clerk (uncredited)
Man at United Nations Building (uncredited)
Conductor on Twentieth Century, Ltd. (uncredited)
Man at United Nations Building (uncredited)
Bellhop (uncredited)
Train Passenger (uncredited)
Hotel Lounge Patron / Man at Mt. Rushmore Cafeteria (uncredited)
Man at Auction (uncredited)
Victor - Captain of Waiters (uncredited)
Larry Wade (uncredited)
Policeman at Grand Central Station (uncredited)
Assistant Auctioneer (uncredited)
Bidder (uncredited)
Stockbroker (uncredited)
Assistant Conductor (uncredited)
Man at Auction (uncredited)
Ranger (uncredited)
Minor Role (uncredited)
Patrolman Waggoner (uncredited)
Woman at Auction (uncredited)
Photographer at United Nations (uncredited)
Fanning Nelson (uncredited)
Courtroom Spectator (uncredited)
Man at United Nations Building (uncredited)
Worker (uncredited)
Worker (uncredited)
Man at United Nations Building (uncredited)
Police Lieutenant (uncredited)
Woman (uncredited)
Woman at United Nations Building (uncredited)
Worker (uncredited)
Tall Man in Crowd (uncredited)
Woman on Sidewalk (uncredited)
Auction Guest (uncredited)