Natalie Wood
Eva Ryker / Claire Ryker
Robert Foxworth
Norman Hall
Ralph Bellamy
William E. Ryker
Jean-Pierre Aumont
Inspector Laurier
Bradford Dillman
Jason Eddington
Morgan Fairchild
Lisa Eddington
Peter Graves
Mike Rogers
Roddy McDowall
MacFarland
Mel Ferrer
Dr. Sanford
Robert Hogan
J.H. Martin
Tonya Crowe
Little Eva
Vince Howard
Albert Thompson
Ellaraino
Martha Thompson
John Alderson
Sheriff
Len Wayland
Commander Masterson
Ted Gehring
Lt. Galbraith
William Beckley
Leeds
Eric Sinclair
Deck Officer
Keith McConnell
Capt. Blake
John Orchard
Burke
Jorge Cervera Jr.
Gardener
John Furlong
Doctor
Terrence E. McNally
Launch Helmsman
Peter Kwong
(uncredited)