Leonard Nimoy: William Shatner and George Takei Remember Their 'Star Trek' Costar

PHOTO: Leonard Nimoy as Mr. Spock and William Shatner as Captain James T. Kirk appear in a scene from The Man Trap, the premiere episode of Star Trek, which aired on Sept. 8, 1966. PlayGetty Images
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Leonard Nimoy died Friday, and his loss has been felt profoundly by his colleagues in Hollywood.

Earlier today, flowers were placed on his Hollywood Walk of Fame star, and many of his fellow actors, including his "Star Trek" costars, expressed their condolences on social media.

"I loved him like a brother," William Shatner wrote on Facebook. "We will all miss his humor, his talent, and his capacity to love."

PHOTO: Leonard Nimoy and William Shatner attend the press conference for Star Trek - The Motion Picture on March 28, 1978.WireImage
Leonard Nimoy and William Shatner attend the press conference for "Star Trek - The Motion Picture" on March 28, 1978.

Best known for playing Spock in "Star Trek" on TV and in film, the actor also worked in the theater, portraying Tevye in "Fiddler on the Roof," and published poetry and books of photography.