Renaissance man Eric Bogosian — playwright, novelist and actor — stopped by Salon this week to talk about his long career as a multi-hyphenate. From his renowned play “Talk Radio,” which premiered 30 years ago, then became a cult classic film, to his current role in the Showtime hit series “Billions,” Bogosian has found that rare way to stay relevant in and outside of Hollywood while still doing the work that’s most meaningful to him.