The actor is still performing. Happy Days star Don Most is best known for his role as Ralph Malph in the classic ABC sitcom, but in recent years, he’s made the transition to a Colorado jazz musician.
Years before he found fame as red-headed prankster Ralph Malph on the ’70s sitcom “Happy Days,” Donny Most was a red-headed 14-year-old kid spending his summer as part of a youth vaudeville troupe ...
'Happy Days' Star Donny Most Turns 72: Here's What He's Doing Now originally appeared on Parade. Entertainer Don Most is known by most of his fans for his time playing Ralph Malph on Happy Days.