Jim Parsons may no longer be gracing our screens as the socially awkward Sheldon Cooper in "The Big Bang Theory," but avid fans will always associate him with the character. Jim Parsons has undergone a stunning transformation right in front of our eyes, and while he almost didn't get the role of Sheldon Cooper on "The Big Bang Theory" due to show co-creator Chuck Lorre's doubts, we're sure glad things panned out. One cannot imagine anyone else playing Sheldon, but Parsons had to work incredibly hard to bring the character — and his complex lines — to life, and it would eventually take its toll.

Parsons once explained how he used flash cards and even typed out an entire scene in an attempt to master the complex dialogue that comes easy for a genius like Sheldon, describing the process

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