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 2 appearances on The Big Bang Theory.

  • The Big Bang Theory

    The Confirmation Polarization
    Season 12, Episode 13 - Aired January 17, 2019

    When Sheldon and Amy’s super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, they’re thrilled, until they try to kick Amy off the Nobel nomination. Also, Bernadette has a big success at work and Penny’s going to be a part of it – whether she wants to or not.

    Appeared as Dr. Campbell

  • The Big Bang Theory

    The Laureate Accumulation
    Season 12, Episode 18 - Airs April 4, 2019

    When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side. Also, Halley's fear of the dark leads to opportunity and conflict for Howard, Bernadette and Stuart.

    Appeared as Dr. Campbell

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