The Big Bang Theory: Danica McKellar to Guest Star

Hold onto your boson particles physics fans because former Wonder Years star, Danica McKellar, is going to be on the Jan 11th episode of the Big Bang Theory. She is going to be Abby, a Cal Tech Grad student. Somewhat a coincidence, in real life, she has published her own line of math books. Sounds awesome. Spoilers HOOOOOOO!

Source