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 was recently seen in the tenth season episode "Persona" of Law & Order: Special Victims Unit.
Even before he was well-known, Farrell was an activist for many political and social causes. He has worked with Human Rights Watch, was on the Board of Advisors of the original Cult Awareness Network, and has been president of Death Penalty Focus for more than ten years.
In 1985, Farrell was in Central America, helping refugees from the civil war in El Salvador. A guerrilla commander, Nidia Diaz, had been taken prisoner. She needed surgery, but no Salavadoran doctor dared to help her. Amnesty International recruited a foreign doctor. Farrell was present as an observer but was, in his words, "shanghaied into assisting with the surgery" when the doctor said his help was needed. The in-prison surgery was successful. Diaz went on to be one of the signatories of the Chapultepec Peace Accords (the peace treaty ending the war), and she served in the Constituent Assembly of El Salvador and in the Central American Parliament.
Farrell has also been active in the Screen Actors Guild. In 2002 he was elected First Vice President of the Guild in Los Angeles. He served in the post for three years.
In 2006 Farrell appeared with Jello Biafra and Keith Gordon in the documentary Whose War?, examining the U.S. role in the Iraq War.