David Costabile is one of my favored featured players in two of my favorite current series: He plays Bobby Axelrod’s right-hand man, Mike “Wags” Wagner, on Showtime’s Billions, and also plays Gale Boetticher, the chemist who appeared on Breaking Bad and has popped up in the most recent episodes of AMC’s prequel series, Better Call Saul. (He’s also appeared, as a regular, on The Wire, Flight of the Conchords and Damages. What a resumé!) And on tonight’s Murphy Brown, Costabile plays a Steve Bannon-type character, a former White House staffer whom Murphy (Candice Bergen) is asked to book for a headline-generating confrontational interview.