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)