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Dr. Campbell | The Big Bang Theory Wiki | Fandom
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![VIDEO] 'Big Bang Theory' Season 12: Kal Penn, Sean Astin Scene | TVLine](https://tvline.com/wp-content/uploads/2019/01/big-bang-theory.png?w=619 "VIDEO] 'Big Bang Theory' Season 12: Kal Penn, Sean Astin Scene | TVLine")
VIDEO] 'Big Bang Theory' Season 12: Kal Penn, Sean Astin Scene | TVLine
