David Niven as Nick Cartland

Art Carney as Charley Dunbar

Maggie Smith as Miss Anderson

Catherine Hicks as Sable

Lionel Jeffries as Bertie Hargreaves

Melissa Prophet as Marlene

Kimberly Partridge as Bridget

George Hilsdon as Butler

Claude Coppola as Louis

Marie Marczack as Nanny

John Rico as Club Manager

Jean-Pierre Castaldi as Doctor

Jacqueline Doyen as Head Nurse

Patrick Le Barz as Hotel Receptionist

Marco Martinozzi as Hotel Receptionist

Pierre Agil as Cab Driver

Charles Burnell as Barman

John Tamset as Yacht Captain