Though Leonard Nimoy began acting in community theaters at age eight, he didn't make his Hollywood debut until he was 20. His first film role was a bit part in Queen for a Day, which was followed up by a bit part in the perennial Rhubarb. He studied at UCLA and received a masters degree in education from Boston University. He also served for two years in the Army Reserves. After leaving the army Nimoy was still receiving small, often uncredited parts. He appeared as an Earth-friendly Martian in Zombies of the Stratosphere. This role foreshadowed the one that made him famous: Mr. Spock, the half-human/half-Vulcan science officer of Star Trek. His performance won him three Emmy nominations.
After the original Star Trek ended, Nimoy continued to be part of the sci-fi franchise; he served as writer and director of Star Trek IV: The Voyage Home. In addition to television, Nimoy has also appeared extensively on stage. His credits include: Fiddler on the Roof, Oliver, Camelot and Equus. He has hosted the well-known TV series In Search of... and Ancient Mysteries. In 2002, he announced his retirement from movies. He came out of retirement in 2008 to play Spock in the new big-screen Star Trek adaptation from J.J. Abrams (Lost, Fringe). That same year he also released a photography book entitled The Full Body Project.
Spock is half human, half Vulcan, and as such often struggles to balance his human emotions with his ingrained logic. Born to a famous father, the Vulcan Sarek, and a human mother named Amanda Grayson, he often relies on the latter as he is forced to navigate his emotional outcroppings in a culture that doesn't understand anything but critical thought. His dual role on the ship is that of Science Officer and First Officer. Spock is Kirk's right-hand man, though the two sometimes differ in their approach to certain problems - they frequently find a balance with the help of a third party, Dr. McCoy. Spock was betrothed to a woman named T'Pring for seven years but didn't marry her in order to continue his work aboard the Enterprise.