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Every Character In The Big Bang Theory, Young Sheldon, AND Georgie & Mandy's First Marriage
The Big Bang Theory universe has expanded with ... The introduction of Sheldon's twin sister came as a surprise to the rest of his friends, especially since she wasn't anything like the socially ...
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Every Big Bang Theory Character & Actor In Young Sheldon
After Mary's visit to Pasadena in The Big Bang Theory season 1, Sheldon's fraternal twin sister Missy followed suit appearing ...