‘The Big Bang Theory’ Casts ‘Mad Men’ Star, Making One Mad Man
Because there can never be enough reasons to threaten the relationship between Leonard and Penny, right? 'The Big Bang Theory' will air its latest Halloween-themed episode tonight with "The Holographic Excitation" but it's Leonard who should really be scared. Upcoming episodes will see the introduction of a character from 'Mad Men' and 'Alphas' star Ryan Cartwright, one who might be in a