Kelly AuCoin (born February 14, 1967) is an American actor who has appeared in film, television, and theater. He plays "Dollar" Bill Stern on Billions (Showtime), and played Pastor Tim on The Americans (FX). He has had recurring roles on several other American television series, including Hercules Mulligan on Turn: Washington's Spies (AMC), and Gary Stamper on House of Cards (Netflix). He frequently appears on stage in New York and venues around the country, such as Manhattan Theatre Club, Signature Theatre, Playwrights Horizons, the Oregon Shakespeare Festival and La Jolla Playhouse. He has had supporting roles in films, including Steven Spielberg's The Post, The Kingdom, Julie & Julia, and All That I Am, which won the SXSW Special Jury Award for Ensemble Acting.