What “Star Trek” episode features Spock with a beard? August 4, 2020August 4, 2012 by Pamela Landy “Mirror, Mirror,” where Leonard Nimoy portrays an evil Spock in a barbaric parallel universe, features Spock with a beard. Related Answers Who played Spock’s love interest Leila on the “Star Trek” (NBC, 1966-69) episode called “This Side of Paradise”? On “Star Trek,” what were the names of Spock’s parents? What science-fiction TV series did Leonard Nimoy appear in before “Star Trek” (NBC, 1966-69)? What was the first episode of “Star Trek” to be televised? On what TV series did William Shatner and Leonard Nimoy work together before “Star Trek” (NBC, 1966-69)? Who plays the old man with the long white beard who jumps out of his bed to watch the climactic fight in The Quiet Man (1952)?