Shatner will portray himself for the upcoming episode, in which the TV and film vet will show off some stereotypically nerdy behavior during a star-studded game of Dungeons and Dragons.
Mega-fandoms will soon collide on The Big Bang Theory, which will finally feature Star Trek icon William Shatner as one of its highly lauded guest stars.
Check out the pic below, which shows Shatner looking baffled by something Leonard did or said.
(Kevin Smith, Joe Manganiello and Kareem Abdul-Jabbar will also appear.)