Michael Joseph "Mike" Farrell (born February 6, 1939) is an American actor, best known for his role as Captain B.J. Hunnicutt on the popular television series M*A*S*H (1975–83). More recently, Farrell has starred on the television series Providence (1999–2002) and appeared as Milton Lang, Victor's father, on Desperate Housewives (2007–2008). He is also a prominent activist for politically left-wing causes. He was recently seen in the tenth season episode "Persona" of Law & Order: Special Victims Unit.
Farrell, one of four children, was born in St. Paul, Minnesota, the son of Agnes and Joe Farrell. When he was two years old, his family moved from South St. Paul, Minnesota to Hollywood, California, where his father worked as a movie studio carpenter. Farrell attended West Hollywood Grammar School with Natalie Wood, and graduated from Hollywood High School, served in the United States Marine Corps, and worked at various jobs before his acting career.
During the 1960s, Farrell guest-starred in a few series. Notable roles included Federal Agent Modell in the episode "Monkee Chow Mein" on The Monkees in 1967, as astronaut Arland in the episode "Genie, Genie, Who's Got the Genie?" on I Dream of Jeannie, and as an Army doctor in an episode of Combat!. In 1968 he originated the continuing role of Scott Banning in an NBC soap opera, Days of our Lives. In 1970 he starred as one of the young doctors in the CBS prime-time series The Interns, in a cast led by Broderick Crawford. In 1971 he played the assistant to Anthony Quinn in ABC's The Man and the City. In 1973, while under contract to Universal Studios, Farrell starred with Robert Foxworth in The Questor Tapes. During the years under contract he guest starred in a number of shows, including Banacek and Marcus Welby, M.D. and starred in a television pilot with Jane Wyman, which did not sell.