Sal Mineo
— Dino Minetta
Brian Keith
— Larry Sheridan
Susan Kohner
— Shirley
Frank Faylen
— Frank Mandel
Joe De Santis
— Mr. Minetta
Pat DeSimone
— Tony Minetta
Penny Santon
— Mrs. Minetta
Richard Bakalyan
— Chuck
Molly McCart
— Frances
Cynthia Chenault
— Sylvia (as Cindy Robbins)
Rafael Campos
— Boy #2
Byron Foulger
— Gas Station Attendant (uncredited)