Catspaw

"Catspaw" is an episode of the second season of the original science fiction television series Star Trek. It is episode #36, production #30, and was first broadcast October 27, 1967 and repeated on May 24, 1968. It was written by Robert Bloch, and directed by Joseph Pevney. Its Gothic horror elements are in keeping with the proximity of the episode's release to Halloween. Bloch based his teleplay very loosely on his short story "Broomstick Ride". In this episode, two powerful aliens threaten the well-being of the Enterprise and her crew.