Breaking Bad was a hugely successful dark drama that told the story of the rise and fall of cancer-stricken Walter White's meth empire that saw him allied to and pitted against other characters in the criminal underworld.
One of those characters was Mike Ehrmantraut, played by Jonathan Banks, who plays the reluctant cop-turned-criminal that oversaw the security and business end of Walter White's methamphetamine production.
Banks became famous for this portrayal, with his face becoming synonymous with that of Breaking Bad's hardknock badass. His early career, however, had humble beginnings.
His acting career began in the mid-1970s when he starred in a short educational film called Linda's Film on Menstruation (video below, he's at 1:10) that follows a 15-year-old girl who just started her period. It addresses common queries that girls may have who have started menstruating.