Charles Collins / Quentin Collins
David Selby
Tracy Collins
Kate Jackson
Mrs. Castle
Clarice Blackburn
Bald Henchman (uncredited)
Captain Haggerty
Carlotta Drake
Grayson Hall
Angelique Collins
Lara Parker
Alex Jenkins
John Karlen
Claire Jenkins
Nancy Barrett
Gerard Stiles
Jim Storm
Rev. Strack
Thayer David
Gabriel Collins
Christopher Pennock
Laura Collins
Diana Millay
Director
Dan Curtis
Story
Producer
Music
Bob Cobert
Screenplay
Sam Hall
Editor
Charles Goldsmith
Costume Design
Domingo A. Rodriguez
Makeup Artist
Reginald Tackley
Casting
Linda Otto
Production Design
Trevor Williams
Director of Photography
Richard Shore
Production Supervisor
George Goodman
Associate Producer