What actors and actresses appeared in Plateau of Fear - 1961?

The movie you are referring to is actually called "The Pit and the Pendulum" (1961), not "Plateau of Fear".

Here are the main actors and actresses who appeared in "The Pit and the Pendulum":

* Vincent Price as Francisco Scarlatti

* Barbara Steele as Elizabeth

* John Kerr as Charles

* Luana Anders as Catherine

* Anthony Dawson as the Inquisitor (uncredited)

* Dana Andrews as the physician (uncredited)

This classic horror film was directed by Roger Corman and is based on Edgar Allan Poe's famous short story.