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