Arlene Dahl as Kathleen 'Kathy' Allen, nee Alanborg

Philip Carey as Tim O'Bannion

Herbert Marshall as Stephen Collins

Michael Goodliffe as Larry Buckham

David Kossoff as Sam Lewis

Marvin Kane as Mike Lewis

Sid James as Frank Allenborg

Gil Winfield as Chuck (as Gilbert Winfield)

Patrick Allen as Willie

Ralph Truman as John Dowling

Faith Brook as Virginia Collins

Frederick Valk as Mr. Reisner

John Salew as Mr. Page, Chief Accountant

Gil Winfield as Chuck

Totti Truman Taylor as Miss Russell

Larry Cross as T.V. Announcer

Paul Sheridan as Hotel Receptionist

Tom Gill as Business Man on Plane

Frank Atkinson as Hotel Porter

Alastair Hunter as Connor

Jacques Brunius as Inspector Caron

Anthony Sharp as Guest pushing past chair

Guy De Monceau as Dowling's Chauffeur

Raf De La Torre as Dowling's Butler

Selma Vaz Dias as Wedding Dress Fitter