The Big Bang Theory is about to celebrate its 200th episode, and Adam West will join be joining a cast of other famous faces.

According to The Hollywood Reporter, Adam West will play himself, and will join the likes of John Ross Bowie, Christine Baranski, Sara Gilbert, and Wil Wheaton for the landmark episode.

This will be the first time the former Batman actor has appeared on the show.

We don't know exactly what will happen in the episode yet, but we do know that it will air on CBS on Thursday, February 25 at 8pm.