Boris McGiver is an American actor. He first acted in the 1987 film Ironweed. In the ’90s, he made his television debut in an episode of New York Undercover. Later in 2006, he played recurring character Charles Marimow in The Wire. During this period, he also had performances in the films Connie and Carla, Taxi, The Pink Panther, and The Clique. In the 2010s, McGiver played Alexander Hamilton Coffroth in the historical drama film Lincoln. he also became known for his portrayals of George Hersh in Person of Interest and Tom Hammerschmidt in House of Cards. In addition, he played Sheriff Peter Lindsay in Boardwalk Empire. As of 2020, he stars as Glen Maskins in the new ABC series For Life.