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Kunal Nayyar made his debut on the popular sitcom "The Big Bang Theory" in 2007. He portrayed the character of Raj Koothrappali, an astrophysicist from New Delhi, India, who struggles with selective mutism, rendering him unable to speak to women unless he is intoxicated. With his comedic charm and endearing portrayal of Raj, Nayyar became an integral part of the show's success, contributing to its twelve-season run and global acclaim.