Leonard Simon Nimoy ( March 26, 1931 – February 27, 2015)

Blatently borrowed from Wikipedia:

Leonard Nimoy was an American actor, film director, poet, singer and photographer. Nimoy was best known for his role as Spock in the original Star Trek series (1966–69), and in multiple film, television and video game sequels.

Nimoy was born to Jewish migrant parents in Boston, Massachusetts. He began his career in his early twenties, teaching acting classes in Hollywood and making minor film and television appearances through the 1950s, as well as playing the title role in Kid Monk Baroni. Foreshadowing his fame as a semi-alien, he played Narab, one of three Martian invaders in the 1952 movie serial Zombies of the Stratosphere. In 1953, he served in the United States Army.

In 1965, he made his first appearance in the rejected Star Trek pilot The Cage, and went on to play the character of Mr. Spock until 1969, followed by eight feature films and guest slots in the various spin-off series. The character has had a significant cultural impact and garnered Nimoy three Emmy Award nominations; TV Guide named Spock one of the 50 greatest TV characters. After the original Star Trek series, Nimoy starred in Mission: Impossible for two seasons, hosted the documentary series In Search of…, and narrated Civilization IV, as well as making several well-received stage appearances. More recently, he also had a recurring role in the science fiction series Fringe.

Nimoy’s fame as Spock was such that both of his autobiographies, I Am Not Spock (1975) and I Am Spock (1995), were written from the viewpoint of sharing his existence with the character.
Death

In February 2014, Nimoy revealed that he had been diagnosed with chronic obstructive pulmonary disease (COPD). On Twitter, he said: “I quit smoking 30 yrs ago. Not soon enough. I have COPD. Grandpa says, quit now!! LLAP (Live Long and Prosper).” On February 19, 2015, Nimoy was rushed to UCLA Medical Center for severe chest pains after a call to 911. According to accounts, he had been in and out of hospitals for the “past several months.”

Nimoy died on February 27, 2015 in his Bel Air home from final complications of COPD, according to his wife Susan. He was 83 years old, and is survived by Susan and his two children and six grandchildren from his first marriage.

A few days before his passing, Nimoy shared some of his poetry on social media website Twitter. The final tweet that he sent out read: “A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP”.

Shatner said of his friend “I loved him like a brother […] We will all miss his humor, his talent, and his capacity to love.”

Zachary Quinto, who portrayed the younger “Spock” character in films Star Trek and Star Trek Into Darkness, commented on Nimoy’s death: “my heart is broken. i love you profoundly my dear friend. and i will miss you everyday. may flights of angels sing thee to thy rest.”

George Takei stated: “The word extraordinary is often overused, but I think it’s really appropriate for Leonard. He was an extraordinarily talented man, but he was also a very decent human being. His talent embraced directing as well as acting and photography. He was a very sensitive man. And we feel his passing very much. He had been ill for a long, long time, and we miss him very much.”

Leonard Nimoy as Spock