Peter Gray Lewis is an American actor whose exact birthday and birthplace are not publicly available in major sources. He lived his first four years in the Appalachian Mountains of Eastern Kentucky, where his father was the minister of a small-town Baptist church, before spending his formative years in Louisville, Kentucky. A graduate of Westport High School, he was a member of the original Hubbard Street Dance Company before leaving dance at 24 to hitchhike and hop freight trains across the country for over a decade. He graduated from the University of Illinois and the Yale School of Drama, then spent 20 years in the off- and off-off-Broadway New York theatre scene, performing in over 75 plays, including touring nationally with The Acting Company as Joe in Tennessee Williams' The Long Goodbye. He received a Best Actor nomination from the 29th Annual L.A. Weekly Theatre Awards for his portrayal of Andrew in Chuck Mee's Lemonade Tous Les Jour, which won Best Ensemble Cast. His most notable film credits include the Mayor in Motherless Brooklyn (2019, with Edward Norton and Willem Dafoe), Warden in Stone (2010, with Robert De Niro and Edward Norton), Richard Brooks in Untraceable (2008, with Diane Lane), Blue Lab Doctor in The Bourne Legacy (2012), Coach Tice in Greater (2016), a role in Forgetting Sarah Marshall (2008, directed by Judd Apatow), Pineapple Express (2008, with Seth Rogen and James Franco), Down in the Valley (2005), Frank (Lawyer) in A Complete Unknown (2024), and Professor Keller in Terrifier 3 (2024). On television he is best known as Judge Howard Marsh in Dirty John (2020, with Christian Slater and Amanda Peet), Judge Edward Walsh in Interrogation (2020), Ralph Stuben in Mad Men (2007), JD Carrick in Person of Interest (2016), Mike Shaeffer in The Blacklist (2023), with additional credits in 30 Rock (2006), Law & Order (1990), Law & Order: Special Victims Unit (1999), Boston Legal (2004), Dark Blue (2009), 666 Park Avenue (2012), and Unforgettable (2011).