Spock
Spock, also called Mr. Spock, from the Original Star Trek TV series is one of the most enduring characters from American 1960s television. Mr. Spock is an alien, half-Vulcan, half-Human. more...
He held various ranks within Starfleet but his service with Captain James Kirk as First Officer of the Starship Enterprise is his legacy. The character's appeal derives from Spock's socially conscious but technically proficient nature. In addition, his personal struggle between the Vulcan logical self and human emotion created evocative drama. He was portrayed by actor Leonard Nimoy (except for brief scenes of a much younger Spock in two later movies).
Personal life
Spock is the son of the Vulcan ambassador Sarek and his human wife Amanda Grayson. Although Spock identified himself as Vulcan, he had an ongoing internal conflict between the reason and logic of his Vulcan half and the emotion and intuition of his human half. By human standards, however, he was incredibly logical and utterly unflappable in the face of danger.
Spock had an older half-brother, Sybok, who eschewed pure logic, and was banished from Vulcan for his heresy.
Spock is generally considered to have married at some point, because Captain Jean-Luc Picard once observed that he had met Sarek at "his son's wedding". Seeing as Sybok died before Picard was even born, it is safe to assume that he was referring to Spock's marriage. The non-canon novel Vulcan's Heart features the marriage of Spock and Saavik.
Read more at Wikipedia.org