Star Trek fans, today, mourn the loss of Leonard Nimoy whose most famous role was First Officer Spock on the cult television and movie series Star Trek. His roles, however, run the gamut from his first role in Queen for a Day in 1951. Nimoy was 83.

Nimoy once said that he was so sure that the popularity Star Trek would be short lived that he did not even bother to change his phone number. One of the mistakes he learned from. The character of Spock and the tension between his character and that of Doctor McCoy—played by the late DeForest Kelley—turned out to be popular among fans of the show.

Shatner shared on his Facebook page, “I loved him like a brother. We will all miss his humor, his talent, and his capacity to love.”

Nichelle Nicols, Lt. Uhura on Star Trek, issued a statement from Pensacon sci-fi convention:

“I am deeply saddened by the death of my dear friend Leonard Nimoy. But, I also want to celebrate his extraordinary life. He was a true force of strength and his character was that of a champion. Leonard’s integrity and passion as an actor and devotion to his craft helped transport STAR TREK into television history. His vision and heart are bigger than the universe. I will miss him very much and send heartfelt wishes to his family.”

Nimoy played a variety of roles in a variety of television shows over the years. He acted aside Dean Stockwell in the Twilight Zone episode A Quality of Mercy. He acted as the reporter Judson Ellis in The Outer Limits presentation of I, Robot. He had roles of soldiers and sailors. He played spies and native Americans and cowboys. He played roles in Combat!, The Man From U.N.C.L.E., Wagon Train, Sea Hunt and many other popular sixties television series.

He was also a noted author, producer and director including Star Treks III and IV and one episode of T.J. Hooker with his former Co-star on Star Trek, Williams Shatner.

He is also known for his books including I Am Not Spock. People took that to mean that he did not like to be connected with his role of Mr. Spock, so he wrote a sequel called I Am Spock in which he revealed that he had not problems being connected with the Star Trek role because he never wanted for work because of it. His image and voice was instantly recognizable even by non-Star Trek fans.