Don Most

Don Most is an American actor known for playing Ralph Malph on Happy Days. Born in Brooklyn, New York City, in 1953, he studied at Lehigh University before landing that role on his third audition and moving to California to act full time. He played the jokester Ralph until 1980, then returned as a guest star in the final season. His film work includes Leo and Loree (1980) and EDtv (1999), plus Planting Melvin (2005) and The Great Buck Howard (2008). On television he made guest appearances on shows such as Fantasy Island, CHiPs, Murder, She Wrote, Baywatch, and Star Trek: Voyager, and he voiced characters in Dungeons & Dragons and Teen Wolf. He also acted in theater, directed The Last Best Sunday (1999), an independent film, and Moola (2007), released pop music, later performed and produced swing music, and released the 2023 album New York High.