Charles Boyer as Adam Belinski

Jennifer Jones as Cluny Brown

Peter Lawford as Andrew Carmel

Helen Walker as Betty Cream

Reginald Gardiner as Hilary Ames

Reginald Owen as Henry Carmel

C. Aubrey Smith as Charles "Duff" Graham

Margaret Bannerman as Alice Carmel

Sara Allgood as Mrs. Maile

Ernest Cossart as Syrette

Una O'Connor as Mrs. Wilson

Florence Bates as Dowager at Ames's Party

Richard Haydn as Jonathan Wilson

Billy Bevan as Uncle Arn Porritt

Whit Bissell as Archie

Christopher Severn as Ronald Snaffle

Billy Gray as Richard Watkins

Constance Purdy as Lady Outside Bookstore

Queenie Leonard as Weller