![The Big Bang Theory: Katey Sagal and Jack McBrayer Cast as Penny's Family!](https://tv-fanatic-res.cloudinary.com/iu/s--DwlHrOfP--/c_fill,d_tv-fanatic-placeholder-square.png,f_auto,g_auto,h_258,q_auto,w_424/v1461695330/slides/1871/mayim-bialik-has-a-phd)
Comic-Con
The Big Bang Theory: Katey Sagal and Jack McBrayer Cast as Penny's Family!
Some fun news from CBS today includes the expansion of Penny's family on The Big Bang Theory. We'll finally get to meet her mom and brother. Read on!
Posted in:
TBBT