Haggerty appeared briefly in David Carradine's film "Americana" and provided a fighting dog for the production. In the film, he not only played the role of the dog's trainer, but also assisted in set design and the restoration of a broken down carousel, which figured prominently in the film. He assisted in building the motorcycles featured in the film "Easy Rider", and had a bit part as a hippie in that film, as well as stunt work and supporting roles in numerous low-budget biker films of the era. He also starred in the 1989 film "Spirit of the Eagle".