

The pilot was rejected and most of its characters, including Number One, were omitted from the second pilot and the subsequent series (the relationship between Spock and Kirk would emulate that of Number One and Pike).

She first appeared, portrayed by Majel Barrett, in " The Cage", the initial 1965 pilot episode of the original series. She is Christopher Pike's second-in-command during his captaincy of the starship Enterprise. Una Chin-Riley, commonly and originally only known as Number One, is a fictional character in the science-fiction franchise Star Trek. Majel Barrett as Number One in the rejected 1965 pilot for Star Trek: The Original Series, " The Cage"
