(CNN)Leonard Nimoy, whose portrayal of "Star Trek's" logic-driven, half-human science officer Spock made him an iconic figure to generations, died Friday. He was 83. Nimoy died this morning in Bel Air, California, his son Adam Nimoy told CNN. According to his granddaughter, Madeleine Nimoy, the cause of death was chronic obstructive pulmonary disease. His "Star Trek" co-stars, including William Shatner and George Takei, expressed sadness at his death. "We return you now to the stars, Leonard. You taught us to 'Live Long And Prosper,' and you indeed did, friend," Takei wrote. Fans honor Nimoy with tweets, Vulcan salute Nimoy's career in show business spanned more than six decades and included stints as a stage actor, television guest star, series regular and movie veteran. He also directed a handful of films, including the box-office hit "Three Men and a Baby" in 1987. He was a singer (of sorts), a published poet and an accomplished photographer.Leonard Nimoy played Spock in "Star Trek" TV show, moviesActor was known for the half-Vulcan, half-human characterNimoy was fond of science, inspiration to many
But his lasting claim to fame remains Spock, a native of the planet _ whose pointed ears, unemotional manner and frequently uttered "fascinating" endeared him to millions. _ in 2010: "I feel very fulfilled" with my work. _ got the part in the show, which was called "Star Trek."