Haggerty starred in the TV miniseries Condominium (1980), which also starred Barbara Eden, Ralph Bellamy and Stuart Whitman. Haggerty played a hydraulics expert trying to warn residents that their Florida condos were about to be demolished in a forthcoming 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.