Big Bang Theory Spock Cameo of the Day

Several Star Trek stars, including Wil Wheaton, Brent Spiner and LeVar Burton, have appeared on The Big Bang Theory, and now it's Leonard Nimoy's turn.

Nimoy will reprise his role as Spock in an upcoming episode of the show, but only in Sheldon Cooper's dreams. Previously, the closest Sheldon has come to his Vulcan hero is owning a sample of Nimoy's saliva.

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