Cynthia Jane Williams (August 22, 1947 – January 25, 2023) was an American actress. She is best known for her role as Shirley Feeney on the television sitcoms Happy Days (1975–1979), and Laverne & Shirley (1976–1982). She also appeared in American Graffiti (1973), The Conversation (1974), Mr. Ricco (1975), and More American Graffiti (1979). (Via Wikipedia)
