James Stewart
as Dr. Ben McKenna

Doris Day
as Jo McKenna

Brenda De Banzie
as Lucy Drayton

Bernard Miles
as Edward Drayton

Ralph Truman
as Buchanan

Daniel Gélin
as Louis Bernard

Mogens Wieth
as Ambassador

Alan Mowbray
as Val Parnell

Hillary Brooke
as Jan Peterson

Christopher Olsen
as Hank McKenna

Reggie Nalder
as Rien

Richard Wattis
as Assistant Manager

Noel Willman
as Woburn

Alix Talton
as Helen Parnell

Yves Brainville
as Police Inspector

Carolyn Jones
as Cindy Fontaine

Bernard Herrmann
as Conductor at Albert Hall

Covent Garden Chorus
as Themselves

Barbara Howitt
as Self - Soloist

Patrick Aherne
as Handyman (uncredited)

Frank Albertson
as Taxidermist (uncredited)

Frank Atkinson
as Edgar, a Taxidermist (uncredited)

John Barrard
as Taxidermist Holding the Panther (uncredited)

Mayne Lynton
as Grey Haired Taxidermist (uncredited)

Clifford Buckton
as Sir Kenneth Clarke (uncredited)

Walter Bacon
as Church Member (uncredited)

Lovyss Bradley
as Church Member (uncredited)

Nora Bush
as Church Member (uncredited)

Ann Kunde
as Church Member (uncredited)

Jean Ransome
as Church Member (uncredited)

Albert Carrier
as French Policeman (uncredited)

Louis Mercier
as French Policeman (uncredited)

Anthony Warde
as French Policeman (uncredited)

Frank Baker
as Royal Albert Hall Attendee (uncredited)

Oliver Cross
as Royal Albert Hall Attendee (uncredited)

Sam Harris
as Royal Albert Hall Attendee (uncredited)

Jimmie Horan
as Royal Albert Hall Attendee (uncredited)

Carl M. Leviness
as Royal Albert Hall Attendee (uncredited)

Lee Miller
as Royal Albert Hall Attendee (uncredited)

Arthur Tovey
as Royal Albert Hall Attendee (uncredited)

Harry Fine
as Edington (uncredited)

Alex Frazer
as Man in Box Office Lobby (uncredited)

Wolf Frees
as Aide to Prime Minister (uncredited)

Richard Marner
as Aide to Prime Minister (uncredited)

Milton Frome
as Embassy Back Entrance Guard (uncredited)

Walter Gotell
as Matthews, Scotland Yard Patrol Car (uncredited)

Leo Gordon
as Drayton's Chauffeur (uncredited)

Alfred Hitchcock
as Man in Marrakesh Marketplace (uncredited)

Gladys Holland
as Bernard's Date at Restaurant (uncredited)

George Howe
as Ambrose Chappell Sr. (uncredited)

Richard Wordsworth
as Ambrose Chappell Jr. (uncredited)

Eumenio Blanco
as Arab (uncredited)

Allen Jaffe
as Arab (uncredited)

Lou Krugman
as Marrakesh Headwaiter (uncredited)

Harold Kasket
as Stavis, Embassy Butler (uncredited)

Barry Keegan
as Patterson (uncredited)

Lloyd Lamble
as General Manager of Albert Hall (uncredited)

Lewis Martin
as Detective (uncredited)

Ralph Neff
as Drayton's Henchman (uncredited)

John O'Malley
as Hotel Doorman (uncredited)

Eric Snowden
as Special Branch Officer (uncredited)

Patrick Whyte
as Special Branch Officer (uncredited)

Alma Taylor
as Embassy Guest (uncredited)

Guy Verney
as Embassy Footman (uncredited)

Peter Williams
as Police Sergeant at Albert Hall (uncredited)

John Marshall
as Embassy Butler (uncredited)

Alexis Bobrinskoy
as Foreign Prime Minister (uncredited)

Betty Baskcomb
as Edna, the Church Organist (uncredited)

Hyma Beckley
as Albert Hall Audience (uncredited)

Paul Beradi
as Embassy Guest (uncredited)

Arline Bletcher
as Church Member (uncredited)

Janet Bruce
as Woman in Box Office Queue (uncredited)

Naida Buckingham
as Albert Hall Audience (uncredited)

Barbara Burke
as Miss Benson, the Marksman's Escort (uncredited)

Peter Camlin
as Marrakesh Waiter (uncredited)

Jimmy Charters
as Albert Hall Audience (uncredited)

Abdelhaq Chraibi
as Muslim Husband on the Bus (uncredited)

Victor Harrington
as Embassy Guest (uncredited)

George Hilsdon
as Photographer at the Airport (uncredited)

Philip Johns
as Embassy Chef (uncredited)

Barbara Jones
as Lady on the Bus (uncredited)

Anthony Lang
as Singer in Choir (uncredited)

Donald Lawton
as Desk Clerk (uncredited)

Marion Lessing
as Church Member (uncredited)

Enid Lindsey
as Lady Clarke (uncredited)

Janet Macfarlane
as Albert Hall Audience (uncredited)

Edward Manouk
as Marrakesh Waiter (uncredited)

Lola Morice
as Singer in Choir (uncredited)

Leslie Newport
as Inspector at Albert Hall (uncredited)

Elsa Palmer
as Embassy Cook (uncredited)

Liddell Peddieson
as Taxidermist with a Cap (uncredited)

Pauline Pfarr
as Ambassador's Wife (uncredited)

Arthur Ridley
as Albert Hall Ticket Collector (uncredited)

Lucile Sewall
as Church Member (uncredited)

Mahin S. Shahrivar
as Muslim Wife on the Bus (uncredited)

Guy Standeven
as Albert Hall Audience (uncredited)

Allen Zeidman
as Assistant Manager (uncredited)