Nicholas Alan Searcy (born March 7, 1959) is an American character actor best known for portraying Chief Deputy United States Marshal Art Mullen on FX's Justified. He also had a major role in the Tom Hanks–produced miniseries From the Earth to the Moon as Deke Slayton, and directed Gosnell: The Trial of America's Biggest Serial Killer, a film released on October 12, 2018.