Leonard Simon Nimoy (born 26 March 1931; age 76) is the actor who is best known for his Emmy Award-nominated portrayal of Spock, the half Human, half Vulcan first officer and science officer aboard the USS Enterprise. Originating the role on Star Trek: The Original Series, he went on to play him again on Star Trek: The Animated Series, the first six Star Trek movies, and the Star Trek: The Next Generation episodes "Unification I" and "Unification II". He has also left his mark on the Trek franchise as a director, writer, and producer.
Footage of his role from the TOS episode "The Trouble with Tribbles" was reused for the Star Trek: Deep Space Nine episode "Trials and Tribble-ations". Nimoy also voiced Spock in the video games Star Trek: Strategic Operations Simulator, Star Trek: 25th Anniversary, and Star Trek: Judgment Rites.
At San Diego's Comic Con on 26 July 2007, it was announced that Nimoy will reprise his role as Spock for the upcoming film simply called Star Trek. It was also announced that Heroes star Zachary Quinto will portray a younger version of Spock. This will mark the first time Nimoy has played Spock since 1991.