With his brawn, bulk, scraggly beard and mustache, deep, growly voice and forceful screen presence, Gibb has frequently been cast as scruffy bikers, loutish rednecks and over-aggressive macho athletes. He started out in movies in the early 1980s with uncredited bit parts in Any Which Way You Can (1980), Stripes (1981), and Conan the Barbarian (1982). He achieved enduring cult fame as the outrageous Ogre in the hilarious Revenge of the Nerds (1984), reprising this role in the second and fourth sequels. He was likewise memorable as raucous martial arts fighter Ray Jackson in the exciting Bloodsport (1988) and wildman tennis player Ripper in the amusing Jocks (1984). He had a recurring role as fierce defensive lineman Leslie "Dr. Death" Crunchner on the HBO situation comedy 1st & Ten: The Championship (1984). Among the television series Donald has done guest spots on are Alice (1976), The A-Team (1983), Magnum, P.I. (1980), Knight Rider (1982), The Facts of Life (1979), Hunter (1984), Night Court (1984), MacGyver (1985), Quantum Leap(1989), The X-Files (1993) and The Young and the Restless (1973).