Which American television drama series stars Paul Giamatti and features Sean Ringgold?
Sean Ringgold:  Previously, he has had parts in multiple hit television series such as CW television drama "Gossip Girl" and Ugly Betty. Billions (TV series): Billions is an American television drama series created by Brian Koppelman, David Levien, and Andrew Ross Sorkin, starring Paul Giamatti and Damian Lewis, that premiered on Showtime on January 17, 2016.
Billions