Leonard Nimoy found galaxy-wide fame as the coldly logical alien Mr. Spock on ‘Star Trek,’ but in real life, he couldn’t have been warmer.

“He was so gracious, he was friends with everybody,” David Gerrold, who wrote the hit show’s famous “The Trouble With Tribbles” episode, told ‘Closer.’ “If there was someone on the soundstage he didn’t know, he’d go up and introduce himself. He was a gentleman in every sense of the word.”

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Leonard as Mr. Spock in January 1979.

The world lost this gentle soul when Leonard died on Feb. 27 at 83 from chronic obstructive pulmonary disease, which he blamed on smoking, even though he’d kicked the habit 30 years earlier.

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“It’s never too early to quit,” he said in his final interview last year. His death was mourned by millions, including President Barack Obama, who said, “Long before nerdy was cool, there was Leonard Nimoy.”

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The original cast of ‘Star Trek’ in January 1969.

Long before there was Spock, Leonard started acting as a child, growing up in Boston as the son of Ukrainian Orthodox Jewish immigrants. He played small parts on TV series like ‘The Twilight Zone’ and ‘Bonanza’ prior to landing his signature role in 1966.

As he later recalled, “When I arrived on the ‘Star Trek’ set and had a dressing room with my name on it in something other than chalk I thought, ‘Wow! Found a home!’”

To read the full story on Leonard, pick up the new issue of ‘Closer Weekly,’ on newsstands now!