The May 11 season ender will focus on the marriage between Sheldon (Jim Parsons) and Amy (Mayim Bialik) and feature a roster of new and returning faces to the nerdy comedy from Chuck Lorre, Bill Prady and Steve Molaro. It's unclear what roles any of the new people will be playing, but Hamill's inclusion is a big get for the show given the gang's obvious love of "Star Wars" and the actror's renewed popularity thanks to his starring role in "The Last Jedi". However, CBS has just revealed the crop of guest stars that will make it extra-special, including a drop in from none other than Mark Hamill.
Returning favorites who received an invitation to return include John Ross Bowie (as frenemy Barry Kripke); Courtney Henggeler (Sheldon's sister, Missy); previously announced Laurie Metcalf (Sheldon's mom, Mary); Brian Posehn (Bert); and Will Wheaton (himself). However, continuity is one thing, star power is another.
The Big Bang Theory Season 11 finale will air Thursday, May 10 at 8 p.m. ET on CBS.
It's possible the Star Wars icon will appear as himself in the episode. So it could very well be that The Big Bang Theory producers are going to throw continuity to the wind and bring in Bates as Amy's mother.