Marlo Thomas
— Jenny
Alan Alda
— Delano
Marian Hailey
— Kay
Elizabeth Wilson
— Mrs. Marsh
Vincent Gardenia
— Mr. Marsh
Philip Bruns
— Fred Callahan
Charlotte Rae
— Bella Star
Stephen Strimpell
— Peter
Michael Mislove
Fred Willard
— Executive
Al Thomas
— Al (uncredited)
Florence Stanley
— Woman at Playground (uncredited)
Fay Bernardi
— Woman on Bus (uncredited)
Timothy Ousey
— Boy (uncredited)