Guest Star: Kal Penn
Kal Penn is an American actor best known for his roles on the TV shows House and Designated Survivor, and for the film series Harold & Kumar.
You are viewing a list of Kal Penn's 3 appearances on The Big Bang Theory.
The Confirmation Polarization
Season 12, Episode 13 - Aired January 17, 2019Sheldon and Amy are delighted when a pair of physicists from Chicago prove their theory on super-asymmetry, until they try to take credit for the work.
Appeared as Dr. Campbell
The Laureate Accumulation
Season 12, Episode 18 - Aired April 4, 2019Sheldon and Amy are outraged when they see Drs. Pemberton and Campbell going on a publicity tour, taking credit for their theory.
Appeared as Dr. Campbell
The Plagiarism Schism
Season 12, Episode 21 - Aired May 2, 2019President Siebert tries to patch things up between Drs. Pemberton and Campbell.
Appeared as Dr. Campbell