Harvey Hart Director Anthony Franciosa Collie Ransom Actor Michael Sarrazin Denny McGuire Actor Jacqueline Bisset Vickie Cartwright Actor Bob Denver Choo-Choo Burns Actor Michele Carey Thumper Stevens Actor Michael Wilding Bill Cartwright Actor Lara Lindsay Martha Actor Norma Crane Mrs. Cartwright Actor Tom Mankiewicz Screenwriter Joe Pasternak Producer Pete Rugolo Original Music Robert B. Hauser Cinematographer Philip W. Anderson Film Editing Richard Day Art Director Jack Martin Smith Art Director Stuart A. Reiss Set Decoration Walter M. Scott Set Decoration