Cary Grant

Roger Thornhill

James Mason

Phillip Vandamm

Jessie Royce Landis

Clara Thornhill

Leo G. Carroll

Professor

Josephine Hutchinson

Mrs. Townsend

Philip Ober

Lester Townsend

Martin Landau

Leonard

Adam Williams

Valerian

Edward Platt

Victor Larrabee

Robert Ellenstein

Licht

Les Tremayne

Auctioneer

Philip Coolidge

Dr. Cross

Patrick McVey

Sergeant Flamm

Edward Binns

Captain Junket

Ken Lynch

Charley

Nora Marlowe

Anna, the Menacing Housekeeper (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)

Jack Daly

Train Steward (uncredited)

John Damler

Police Lieutenant (uncredited)

Tommy Farrell

Eddie - Elevator Starter (uncredited)

Jesslyn Fax

Train Passenger (uncredited)

Adolph Faylauer

Bald Bidder (uncredited)

Sally Fraser

Second United Nations Receptionist (uncredited)

James Gonzalez

Man at Auction (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)

Bobby Johnson

Waiter (uncredited)

Kenner G. Kemp

Man Leaving Office Building (uncredited)

Madge Kennedy

Mrs. Finlay (uncredited)

Colin Kenny

Man at Auction (uncredited)

Carl M. Leviness

Man at United Nations Building (uncredited)

Alexander Lockwood

Judge Anson B. Flynn (uncredited)

Thomas Martin

Train Passenger (uncredited)

James McCallion

Plaza Valet (uncredited)

Maura McGiveney

Attendant (uncredited)

Carl Milletaire

Hotel Clerk (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)

Ralph Reed

Bellhop (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)

Robert Shayne

Larry Wade (uncredited)

Jeremy Slate

Policeman at Grand Central Station (uncredited)

Olan Soule

Assistant Auctioneer (uncredited)

Helen Spring

Bidder (uncredited)

Harvey Stephens

Stockbroker (uncredited)

Arthur Tovey

Man at Auction (uncredited)

Dale Van Sickel

Ranger (uncredited)

Lloyd Williams

Minor Role (uncredited)

Robert B. Williams

Patrolman Waggoner (uncredited)

Wilson Wood

Photographer at United Nations (uncredited)

Carleton Young

Fanning Nelson (uncredited)

Bert Stevens

Man at United Nations Building (uncredited)

Cosmo Sardo

Worker (uncredited)

Don Anderson

Worker (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)

Caryl Lincoln

Auction Guest (uncredited)