Paul Anka
— Craig Fowler
Ruth Roman
— Jackie Fowler
Alex Nicol
— Jay Fowler
Gigi Perreau
— Eileen Lowell (as Gigi Pereau)
Carole Mathews
— Betty Lowell
George Dolenz
— Carlo
Jack Cassidy
— Gareth Lowell
Robert Sampson
— Lindstrom
Dan Grayam
— Police Sergeant Webber
Benjie Bancroft
— Police Officer (uncredited)
Jim Jacobs
— Pool Party Guest (uncredited)
Jacqueline Kluger
— (uncredited)
Monty O'Grady
— Pool Party Guest (uncredited)
Ray Reese
— Pool Party Guest (uncredited)
Norman Stevans
— Pool Party Guest (uncredited)
Norman Winston
— (uncredited)