In the wake of Leonard Nimoy's death Friday at his home in Bel-Air, celebrities remembered the 83-year-old not only as the iconic Mr. Spock character he'd originated on "Star Trek" but also as a great friend.
"I loved him like a brother," longtime costar William Shatner wrote, posting a picture on WhoSay of himself and Nimoy. "We will all miss his humor, his talent, and his capacity to love."
"Today, the world lost a great man, and I lost a great friend," George Takei said on Facebook. "We return you now to the stars, Leonard. You taught us to 'Live Long And Prosper,' and you indeed did, friend. I shall miss you in so many, many ways."
Takei, who played Mr. Sulu on "Star Trek," later posted a link to a video compilation of great Mr. Spock moments from the show and invited fans to add their own favorites.
Zachary Quinto, who plays Mr. Spock in the current iteration of "Star Trek" movies, posted a shot of his friend to Instagram, writing, "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."
"Leonard Nimoy was more than Mr. Spock. But Mr. Spock is his gift to us all," Tom Hanks tweeted. "Live long and prosper."
"Two and a Half Men" star Jon Cryer shared how his experience of the actor changed over time: "Leonard Nimoy was a terrific actor who played a character that I loved," he tweeted.
"But even better, when I got to meet him, he was friendly, inspiring, even silly. Loved the character. Will miss the man."
"We stood on your shoulders, and wouldn't have had a galaxy to explore if you hadn’t been there, first," tweeted Wil Wheaton, who played Wesley Crusher on "Star Trek: The Next Generation." "Thank you, Leonard, Rest in peace."
Numerous reactions were being retweeted Friday on the actor's official Twitter account.
Nimoy himself was reflective in his final Twitter post, which went up Sunday.
"A life is like a garden," he wrote. "Perfect moments can be had, but not preserved, except in memory. LLAP."