Brian Koppelman & David Levien Discuss Their Showtime Series, "Billions"

Published: April 12, 2019, midnight

When everyone is out for revenge, no one is safe. This is never truer than in season four of "Billions," created and executive produced by showrunners Brian Koppelman and David Levien. Ambition and betrayal have long been at the heart of the Showtime show, and this season all the characters find out exactly how high a price they'll have to pay to satisfy those needs.