Kal Penn, Sean Astin to guest star in The Big Bang Theory's final season
The hit CBS show is in its 12th season and the two are expected to portray physicists
Actors Kal Penn and Sean Astin are all set to guest-star in an upcoming episode of the hit CBS show, The Big Bang Theory, which is currently in its 12th and final season.
Penn, 41, and Astin, 47, will be playing Dr. Campbell and Dr. Pemberton, respectively - a team of physicists who accidentally confirm the super-asymmetry theory of Sheldon (Jim Parsons) and Amy (Mayim Bialik).
Penn most recently co-starred opposite Kiefer Sutherland in the first two seasons of Designated Survivor, while Astin is set to star in Netflix's family comedy, No Good Nick.
