The Big Bang Theory has tapped Adam West to appear in its 200th episode, EW has learned.
Best known for playing the Caped Crusader in the campy 1960s Batman series, West will portray himself in the landmark episode, which will also feature Christine Baranski returning as Leonard’s mom, Dr. Beverly Hofstadter, John Ross Bowie as Barry Kripke, Sara Gilbert as Leslie Winkle, and Wil Wheaton as himself.
Details on what’s in store for the 200th are being kept under wraps, but the episode will air Thursday, Feb. 25.
The Big Bang Theory airs Thursdays at 8 p.m. ET on CBS.