David Warbeck was a New Zealand actor and model best known for his roles in European exploitation and horror films.
Warbeck in UFO (1970)
Twins of Evil is a 1971 British horror film directed by John Hough and starring Peter Cushing, with Damien Thomas and the real-life identical twins and former Playboy Playmates Mary and Madeleine Collinson.
American Theatrical release poster
Drive-in advertisement from 1972 for Twins of Evil and co-feature, Hands of the Ripper.