Over the years Star Trek has had its share of creepy moments, and we’re not just talking about that guy in the skant who roams the Enterprise-D corridors in “Encounter at Farpoint.” Long before the man dress was unveiled The Original Series set the tone for spooks in space with the episode “Catspaw.” While this was the first and only real Star Trek Halloween special (it aired October 27, 1967) there have been many more thrills and chills worthy of All Hallows Eve.