THE BIG BANG THEORY Season 12 Adds Kal Penn & Sean Astin


The Big Bang Theory has announced that Kal Penn and Sean Astin will be appearing on its final season.

The CBS sitcom has cast Kal Penn (Designated Survivor) and Sean Astin (Stranger Things) to guest-star in an upcoming episode as Drs. Campbell and Pemberton, a team of physicists who accidentally confirm the Amy and Sheldon’s complex scientific concept.

The Big Bang Theory‘s 12th and final season resumes Thursday, Jan. 3 at 8/7c on CBS.