You Won't Believe What the Cast of "The Big Bang Theory" Looks Like Now

Leonard Hofstadter

Leonard Hofstadter was an experimental physicist who shared an apartment with his best friend, Dr. Sheldon Cooper. The romance between Leonard and his next-door neighbor, Penny, was a driving force in the series. Leonard's character was named after actor Sheldon Leonard and Nobel Prize in Physics Laureate Robert Hofstadter.

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The More You Know

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