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Sheldon Cooper

Played by: Jim Parsons in The Big Bang Theory

Sheldon is a theoretical physicist at Caltech who shares an apartment with his colleague and best friend, Leonard Hofstadter (Johnny Galecki). He is a former child prodigy with genius level IQ, but displays an almost total lack of social skills, a tenuous understanding of humor, and difficulty recognizing irony and sarcasm in other people, although he himself often employs them. Source: