David Niven
Jonathan Kingsley

Lola Albright
Alice Kingsley

Chad Everett
Richard Merrick

Ozzie Nelson
Dr. Herbert J. Fleischer

Cristina Ferrare
Linda Kingsley

Jeff Cooper
Bartholomew Smuts

John Harding
Dean Harvey Rockwell

Rich Chalet
Freddie Fleischer

Michael McGreevey
Andy McClaine

Darleen Carr
Abbey Kingsley

Don Beddoe
Dr. Elliot Fish

Louise Lorimer
Mrs. Celia Fish

Karen Norris
Mrs. Rockwell

Susan French
Miss Hammer

Trudi Ames
Francine

J. Edward McKinley
Dr. Pepperell

Ned Wertimer
Dr. Bodey

Jon Hill
College Student (uncredited)

Kenner G. Kemp
Policeman (uncredited)

Leoda Richards
Party Guest (uncredited)

Rudy Germane
Stage Manager (uncredited)

Dee Carroll
Jonathan's Secretary (uncredited)