Leonard Nimoy, cast member of the new film "Star Trek Into Darkness", poses as he arrives at the film's premiere in Hollywood in this May 14, 2013, file photo. Leonard Nimoy, the actor famous for playing the logical Mr. Spock on the television show "Star Trek," died on February 27, 2015 at age 83, according to The New York Times. [Photo/Agencies]

"I was lucky to spend many happy hours with Leonard socially and in front of the camera. The caliber and serious commitment of his work on 'Star Trek' was one of the things all of us on 'Star Trek: The Next Generation' sought to match and be inspired by. His work will not be forgotten," Patrick Stewart, who played Captain Jean-Luc Picard on "Star Trek: The Next Generation," said in a Facebook post.

"He was a talented actor, director, poet and photographer. But his most enduring quality was his kindness and his desire to make you the most you could be. Like everyone who knew or knew of him, I will miss him," actor Steve Guttenberg, who starred in the Nimoy-directed blockbuster comedy "Three Men and a Baby," said in a statement.