Donny Most is an American actor and voice actor, best known for his role as Ralph Malph on the popular television series Happy Days. Born on August 8, 1953, in Brooklyn, New York, he began his career in the entertainment industry at a young age and gained fame during the 1970s. In addition to acting, Most has pursued a career in music and has appeared in various films and television shows. He has also lent his voice to animated projects, showcasing his versatility as a performer. Most remains a beloved figure in the world of classic television.