Anson Williams

 Anson Williams, born Anson William Heimlich on the 25th of September 1949, in Los Angeles, California, is an American actor and singer. He is best known for his performance in Happy Days (1974-1984), where he was the voice of Warren "Potsie", a charming and well-intentioned singer. But his appearances dwindled in subsequent seasons. Richie, Potsie and Ralph are a group that performed at Arnold's Drive-In, among other places, in some episodes. In the role of Potsie, Williams actually sang the lead vocals of the group. Williams's first wife Lorrie Mahaffey was the singer who sang the lead vocals for the group. Williams later returned to Happy Days in a retrospective manner.