Leonard Simon Nimoy (March 26, 1931 – February 27, 2015) was an American actor and director, famous for playing Spock in the Star Trek franchise for over 40 years. This includes originating Spock in the original Star Trek series in 1966, then Star Trek: The Animated Series, the first six Star Trek films, Star Trek: The Next Generation, the 2009 Star Trek film, and Star Trek Into Darkness. Nimoy also directed films, including Star Trek III: The Search for Spock (1984), Star Trek IV: The Voyage Home (1986), and Three Men and a Baby (1987), and his career included roles in music videos and video games. In addition to acting and filmmaking, Nimoy was a photographer, author, singer, and songwriter.

Nimoy's portrayal of Spock made a significant cultural impact and earned him three Emmy Award nominations. His public profile as Spock was so strong that both his autobiographies, I Am Not Spock (1975) and I Am Spock (1995), were written from the viewpoint of coexistence with the character.