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

Patrick McVey

Sergeant Flamm

Edward Binns

Captain Junket

Ken Lynch

Charley

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)

Frank Wilcox

Herman Weltner (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)

Sally Fraser

Second United Nations Receptionist (uncredited)

Paul Genge

Lieutenant Hagerman (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)

Carl M. Leviness

Man at United Nations Building (uncredited)

Frank Marlowe

Taxi Driver (uncredited)

James McCallion

Plaza Valet (uncredited)

Carl Milletaire

Hotel Clerk (uncredited)

Hans Moebus

Man at United Nations Building (uncredited)

Monty O'Grady

Man at United Nations Building (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)

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)