Mayim Bialik famously holds a PhD, a fun fact that made its way into an episode of The Big Bang Theory before she wound up on the show.

Mayim Bialik, who acted out Amy with scholarly and comedic accuracy, even publicly discussed the fact that she was taken aback by how the relationship progressed. In an interview with The Paley Center ...

Mayim Bialik played Amy Farrah Fowler on ‘The Big Bang Theory’ for several seasons. ... her character developed into a pivotal figure in the series and eventually became Sheldon’s wife.