From the characters' well-known catchphrases to their amusing one-liners, these are the best quotes from The Big Bang Theory. Entertainment Leonard and Sheldon might be the most unlikely to find a ...

Sheldon's older brother grew up before viewers ... Barber — who was previously a guest star on The Big Bang Theory — will return to Georgie & Mandy's First Marriage in a dream sequence ...

The Big Bang Theory's new planned spinoff has been given ... who was known to clash with Sheldon Cooper. Bowie later confirmed the news on his Instagram page, writing while referencing his ...

The character was a constant rival for Sheldon Cooper (Jim Parsons) and Leonard Hofstadter (Johnny Galecki) in the original show, being introduced in the second season of The Big Bang Theory.

Portrayed by with great comic aplomb by Jim Parsons, Sheldon Cooper is brilliant, demanding, supercilious, persnickety, and impossible not to watch. Cats, behavioral training, and more.