Karen Valentine

Carol Burnham / Carol Byrnes

John Davidson

Dennis Burnham

Michael Anderson Jr.

Tommy Byrnes

Louise Lasser

Susan Edmonds

Lou Jacobi

Waiter

George Coulouris

Doctor

Kenneth Tobey

Captain

James B. Sikking

Businessman

Marcy Lafferty

Stewardess

Cynthia Harris

Dee Dee

Byron Webster

London hotel Maitre'd (Uncredited)