Haggerty starred in the television film "Condominium" (1980), which also starred Barbara Eden, Ralph Bellamy and Stuart Whitman. Haggerty played a hydrology expert trying to warn residents that their Florida condos were about to be demolished in an approaching hurricane. He was also on "Charlie's Angels", season 5 episode 5, called "Waikiki Angels" as Bo Thompson that aired January 4, 1981. He guest-starred on "The Love Boat" in 1983 ("World's Greatest Kisser"). He cameoed as an attorney in "Terror Night" (1987) with John Ireland and Cameron Mitchell, starred in "Night Wars" (1988) as a Vietnam veteran who is a psychologist dealing with nightmares of his fellow veterans, and appeared in horror films such as "Elves" and the Linda Blair film "The Chilling" in 1989. In "Big Stan" (2007), he played Tubby, and appeared as a lumberjack foreman in "Axe Giant: The Wrath of Paul Bunyan" (2013). Haggerty has also done several voice-overs and can also be seen in music videos by Hank Williams Jr. and Rogues of the Empire.