Henry Orient
Peter Sellers
Valarie Campbell Boyd
Tippy Walker
Store Owner
Al Lewis
Joe Daniels
Peter Duchin
Emma Hambler
Philippa Bevans
(as Jerry Jerrett)
Jerry Jarrett
Lillian Kafritz
Jane Buchanan
Orchestra Member
Peter Turgeon
William Hinnant
Colin Romoff
(as William Le Massena)
William LeMassena
Drunk Woman at Christmas Party
Claudia Morgan
Marian 'Gil' Gilbert
Merrie Spaeth
Stella Dunnworthy
Paula Prentiss
Isabel Boyd
Angela Lansbury
Frank Boyd
Tom Bosley
Mrs. Avis Gilbert
Phyllis Thaxter
Erica 'Boothy' Booth
Bibi Osterwald
Sidney
John Fiedler
Doctor
Fred Stewart
Screenplay
Nunnally Johnson
Producer
Jerome Hellman
Costume Design
Ann Roth
Director of Photography
Boris Kaufman
Director
George Roy Hill
Original Music Composer
Elmer Bernstein
Nora Johnson
Novel
Arthur J. Ornitz
Editor
Stuart Gilmore
Casting
Marion Dougherty
Production Design
James W. Sullivan
Art Direction
Jan Scott
Set Decoration
Ken Krausgill
Script Supervisor
Ruth Deen
Musician
Sam Freed Jr.