Spock (aka Mr. Spock) is a main character in the original Star Trek TV series, and one of the most enduring characters from American 1960s television. He is the only alien in the permanent cast - half-Vulcan, half-Human, and serves as the science officer and executive officer of the USS Enterprise, under Captain James T. Kirk.
His personal struggle between the Vulcan logical self and his human emotional self is the centerpiece of the character and created some evocative drama. He was originally portrayed by actor Leonard Nimoy (except for brief scenes of a much younger Spock in two later movies) and will be portrayed by both Zachary Quinto and Nimoy in the upcoming 2009 film Star Trek.
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