Jim Parsons and Leonard Nimoy Jim Parsons and Leonard Nimoy

Get ready Star Trek fans: Spock is here!

Leonard Nimoy, who originated the role of eminently logical Vulcan Spock in the Star Trek franchise, will make his way to The Big Bang Theory in the March 29 episode.

Leonard Nimoy becomes Big Bang Theory's "dream" guest star

His appearance will make Sheldon's dreams — and probably those of Jim Parsons, based on the photo of the duo on set — come true. Sadly, Sheldon will only hear Spock in his dreams and not get to meet him in person.

Still, are you excited for the ultimate geek meet-up?