David Costabile, who plays Mike "Wags" Wagner on Showtime's "Billions," revealed to Business Insider how he takes care of Wags' signature twisty mustache. "There's a double dose of waxing a day ...

As "Breaking Bad" winds down on AMC with its final eight episodes, actor David Costabile who played lab assistant Gale Boetticher opens up about working on one of television 's most popular shows.