Cary Grant

Roger Thornhill

Eva Marie Saint

Eve Kendall

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

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)

Steve Carruthers

Man at Auction (uncredited)

Taggart Casey

Shaving Man (uncredited)

Walter Coy

U.S. Intelligence Agency Official (uncredited)

Patricia Cutts

Hospital Patient (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)

Adolph Faylauer

Bald Bidder (uncredited)

Sally Fraser

Second United Nations Receptionist (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)

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)

Frank Marlowe

Taxi Driver (uncredited)

Baynes Barron

Taxi Driver #2 (uncredited)

James McCallion

Plaza Valet (uncredited)

Carl Milletaire

Hotel Clerk (uncredited)

Howard Negley

Conductor on Twentieth Century, Ltd. (uncredited)

Monty O'Grady

Man at United Nations Building (uncredited)

Jeffrey Sayre

Hotel Lounge Patron / Man at Mt. Rushmore Cafeteria (uncredited)

Scott Seaton

Man at Auction (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)

Harry Strang

Assistant Conductor (uncredited)

Arthur Tovey

Man at Auction (uncredited)

Dale Van Sickel

Ranger (uncredited)

Robert B. Williams

Patrolman Waggoner (uncredited)

Carleton Young

Fanning Nelson (uncredited)

Dick Johnstone

Courtroom Spectator (uncredited)

Bert Stevens

Man at United Nations Building (uncredited)

Cosmo Sardo

Worker (uncredited)