A mischievous, adventuresome fourteen-year-old girl and her best friend begin following an eccentric concert pianist around New York City after she develops a crush on him.
Peter Sellers
as Henry Orient
Tippy Walker
as Valarie Campbell Boyd
Merrie Spaeth
as Marian 'Gil' Gilbert
Paula Prentiss
as Stella Dunnworthy
Angela Lansbury
as Isabel Boyd
Tom Bosley
as Frank Boyd
Phyllis Thaxter
as Mrs. Avis Gilbert
Bibi Osterwald
as Erica 'Boothy' Booth
John Fiedler
as Sidney
Fred Stewart
as Doctor
Al Lewis
as Store Owner
Peter Duchin
as Joe Daniels