Gavan O'Herlihy has appeared in 15 movies.
Some of the most popular movies include:Gavan O'Herlihy has appeared in 12 TV Series.
These include Lonesome Dove, 18 Wheels of Justice, Twin Peaks, Tales from the Crypt, Cover Up, Matt Houston, The Bionic Woman, Happy Days, Star Trek: Voyager, The Mary Tyler Moore Show, Sherlock Holmes and Midsomer Murders.