Cary Grant
as Roger Thornhill

Eva Marie Saint
as Eve Kendall

James Mason
as Phillip Vandamm

Jessie Royce Landis
as Clara Thornhill

Leo G. Carroll
as Professor

Josephine Hutchinson
as Mrs. Townsend

Philip Ober
as Lester Townsend

Martin Landau
as Leonard

Adam Williams
as Valerian

Edward Platt
as Victor Larrabee

Robert Ellenstein
as Licht

Les Tremayne
as Auctioneer

Philip Coolidge
as Dr. Cross

Patrick McVey
as Sergeant Flamm

Edward Binns
as Captain Junket

Ken Lynch
as Charley

Nora Marlowe
as Anna, the Menacing Housekeeper (uncredited)

Doreen Lang
as Maggie - Thornhill's Secretary (uncredited)

John Beradino
as Sergeant Emile Klinger (uncredited)

Ned Glass
as Ticket Seller (uncredited)

Tol Avery
as State Police Detective (uncredited)

Malcolm Atterbury
as Man at Prairie Crossing (uncredited)

Maudie Prickett
as Hotel Maid Elsie (uncredited)

Bess Flowers
as Plaza Hotel Lounge Patron (uncredited)

Stanley Adams
as Lieutenant Harding (uncredited)

Andy Albin
as Farmer (uncredited)

Ernest Anderson
as Porter on Twentieth Century Ltd. (uncredited)

Frank Wilcox
as Herman Weltner (uncredited)

Brandon Beach
as Man at Auction (uncredited)

Steve Carruthers
as Man at Auction (uncredited)

Taggart Casey
as Shaving Man (uncredited)

Bill Catching
as Auction Attendant (uncredited)

Walter Coy
as U.S. Intelligence Agency Official (uncredited)

Jimmy Cross
as Taxi Driver #1 (uncredited)

Patricia Cutts
as Hospital Patient (uncredited)

Jack Daly
as Train Steward (uncredited)

John Damler
as Police Lieutenant (uncredited)

Lawrence Dobkin
as U.S. Intelligence Agency Official (uncredited)

Tommy Farrell
as Eddie - Elevator Starter (uncredited)

Jesslyn Fax
as Train Passenger (uncredited)

Adolph Faylauer
as Bald Bidder (uncredited)

Sally Fraser
as Second United Nations Receptionist (uncredited)

Paul Genge
as Lieutenant Hagerman (uncredited)

James Gonzalez
as Man at Auction (uncredited)

Tom Greenway
as Silent State Police Detective (uncredited)

Robert Haines
as Man at United Nations Building (uncredited)

Stuart Hall
as Train Passenger (uncredited)

Alfred Hitchcock
as Man Who Misses Bus (uncredited)

Stuart Holmes
as Hotel Lounge Patron (uncredited)

Eugene Jackson
as Security Guard at Auction (uncredited)

Bobby Johnson
as Waiter (uncredited)

Kenner G. Kemp
as Man Leaving Office Building (uncredited)

Madge Kennedy
as Mrs. Finlay (uncredited)

Colin Kenny
as Man at Auction (uncredited)

Carl M. Leviness
as Man at United Nations Building (uncredited)

Alexander Lockwood
as Judge Anson B. Flynn (uncredited)

Frank Marlowe
as Taxi Driver (uncredited)

Baynes Barron
as Taxi Driver #2 (uncredited)

Thomas Martin
as Train Passenger (uncredited)

James McCallion
as Plaza Valet (uncredited)

Maura McGiveney
as Attendant (uncredited)

Carl Milletaire
as Hotel Clerk (uncredited)

Hans Moebus
as Man at United Nations Building (uncredited)

Howard Negley
as Conductor on Twentieth Century, Ltd. (uncredited)

Monty O'Grady
as Man at United Nations Building (uncredited)

Ralph Reed
as Bellhop (uncredited)

John Roy
as Train Passenger (uncredited)

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

Scott Seaton
as Man at Auction (uncredited)

Harry Seymour
as Victor - Captain of Waiters (uncredited)

Robert Shayne
as Larry Wade (uncredited)

Jeremy Slate
as Policeman at Grand Central Station (uncredited)

Olan Soule
as Assistant Auctioneer (uncredited)

Helen Spring
as Bidder (uncredited)

Harvey Stephens
as Stockbroker (uncredited)

Harry Strang
as Assistant Conductor (uncredited)

Arthur Tovey
as Man at Auction (uncredited)

Dale Van Sickel
as Ranger (uncredited)

Lloyd Williams
as Minor Role (uncredited)

Robert B. Williams
as Patrolman Waggoner (uncredited)

Paula Winslowe
as Woman at Auction (uncredited)

Wilson Wood
as Photographer at United Nations (uncredited)

Carleton Young
as Fanning Nelson (uncredited)

Dick Johnstone
as Courtroom Spectator (uncredited)

Bert Stevens
as Man at United Nations Building (uncredited)

Cosmo Sardo
as Worker (uncredited)

Don Anderson
as Worker (uncredited)

Alphonso DuBois
as Man at United Nations Building (uncredited)

Len Hendry
as Police Lieutenant (uncredited)

Anne Anderson
as Woman (uncredited)

Rama Bai
as Woman at United Nations Building (uncredited)

Finn Zirzow
as Worker (uncredited)