Next week on The Big Bang Theory, Dr. Pemberton (Sean Astin) and Dr. Campbell (Kal Penn) threaten Sheldon's Nobel aspirations! Thursday January 17 8pm... | By Sean Astin: Hope Unquenchable | Facebook
Big Bang Theory Season 12 Casts Sean Astin & Kal Penn
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The Big Bang Theory" The Confirmation Polarization (TV Episode 2019) - IMDb
![VIDEO] 'Big Bang Theory' Season 12: Kal Penn, Sean Astin Scene | TVLine](https://tvline.com/wp-content/uploads/2019/01/big-bang-theory.png "VIDEO] 'Big Bang Theory' Season 12: Kal Penn, Sean Astin Scene | TVLine")
VIDEO] 'Big Bang Theory' Season 12: Kal Penn, Sean Astin Scene | TVLine
Kal Penn And Sean Astin To Guest Star On 'The Big Bang Theory'
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The Laureate Accumulation (2019)
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The Laureate Accumulation" -- Pictured: Dr. Pemberton and Dr.... News Photo - Getty Images
the Big Bang Theory's' Famous Cameos and Guest Stars
