Sheldon and Amy will tie the knot in the May 10 season 11 finale.

Updated, April 25: This just in: Kathy Bates and comedian Teller's roles in the Big Bang Theory season 11 finale have been revealed. Bates and Teller will play the parents to Mayim Bialik's Amy Farrah Fowler.

Previous: CBS' The Big Bang Theory is creating an impressive guest list for its wedding-themed season 11 finale.

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.

Newcomers set to be in attendance for the nuptials include Star Wars favorite Mark Hamill, frequent Lorre collaborator Kathy Bates (Two and a Half Men, Disjointed), Lauren Lapkus, the previously announced Jerry O'Connell (as Sheldon's brother, Georgie) and comedian Teller. It's unclear if Hamill will play himself, though the safe bet would be to assume that he would given how much Sheldon loves Star Wars. Details on Bates, Lapkus and Teller's roles were also being kept under wraps.

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 (as himself).

And for those keeping score at home, with Sheldon tying the knot, that leaves Raj (Kunal Nayaar) as the show's remaining bachelor.

Bookmark THR.com/BigBangTheory for coverage of the season finale.