Gregg Henry is an American actor. In 1976, he debuted in the miniseries Rich Man, Poor Man Book II. Later in 1978, he made his first movie role in Mean Dog Blues. During the ’80s, he had roles in the films Funny Money, Just Before Dawn, and Scarface. He then gained attention for starring in Brian De Palma’s Body Double. In the ’90s, he had performances in the films Raising Cain, Star Trek: Insurrection, and Payback. He also played Michael Holt in several episodes of the CBS series Family Law. After this, he played recurring character Mitchum Huntzberger in Gilmore Girls. He next joined the main cast of The Riches as Hugh Panetta. In the 2010s, he became known for starring Hollis Doyle in Scandal, Dr. Arthur Strauss in The Following, Brigham Young in Hell on Wheels, and Dr. David Downey in Chicago Med. In 2018, he played Agent Martin Proctor in Black Lightning.