The Big Bang Theory

Mayim Bialik is the only cast member to have a PhD. In 2008, she completed her neuroscience studies. She earned her Ph.D. in Neural Biology.

Jim Parsons audition for the role of Dr. Sheldon Cooper was so good that creator Chuck Lorre immediately asked Parsons to come in for a second one, because Lorre wanted to be 100% sure Parsons was as brilliant as he seemed.

Most of the time, Leonard has no lenses in his glasses.