A Lookback Of Every Characters In The Big Bang Theory. Who Is Your Favorite?

Casey Sander as Mike Rostenkowski

Sander plays as Howard’s father-in-law. Rostenkowski is a retired, tough cop. Contrary to his tough character, he provides pure comedy on-screen. Casey Sander has made appearances in many TV shows over the years, such as Malcolm in the Middle, Buffy the Vampire Slayer, Criminal Minds, Mad Men, and Sons of Anarchy. 

Casey Sander As Mike Rostenkowski