Billions is ending its run on Showtime this weekend, and the men behind the series – Brian Koppelman and David Levien – are revealing some behind-the-scenes details about the financial drama’s final season and series finale. Starring Paul Giamatti, Corey Stoll, Maggie Siff, Damian Lewis, David Costabile, Asia Kate Dillon, Dola Rashad, Jeffrey DeMunn, Sakina […]