The Cage (Star Trek: The Original Series) of the eventual series, but there were numerous differences. The Captain of the starship USS "Enterprise" was not James T. Kirk, but Christopher Pike. Spock was present, but not as First Officer. That role was taken by a character known only as Number One, played by Majel Barrett. Spock's character differs somewhat from that seen in the rest of "Star Trek"; he displays a youthful eagerness that contrasts with the later more reserved and logical Spock. He also delivers the first line in all of "Star Trek": "Check the circuit!" followed by, "Can't be the screen then." The weaponry used
Mirror, Mirror (Star Trek: The Original Series) a Mirror, Darkly", which is a sequel to the Original Series episode "The Tholian Web", reveals the fate of the USS "Defiant". The Mirror Universe played a large role in of "" and was visited in "Despite Yourself", "The Wolf Inside", "Vaulting Ambition", and "What's Past Is Prologue". For the franchise's 30th anniversary, "TV Guide" ranked "Mirror, Mirror" No. 3 on its list of the 10 best "Star Trek" episodes from all series. Mirror, Mirror (Star Trek: The Original Series) "Mirror, Mirror" is the fourth episode of the of the American science fiction television series "". Written by Jerome Bixby