Valerie Anne Bertinelli is an American television and film actress best known for starring as Barbara Cooper Royer in the television show One Day at a Time ( 1975-1984 ) and Melanie Moretti in the sitcom Hot in Cleveland ( 2010s-present ) . She was born April 23 , 1960 near Wilmington , Delaware . Valerie Anne Bertinelli ( born April 23 , 1960 ) is an American actress , best known for her roles as Barbara Cooper Royer on the television series One Day at a Time ( 1975-1984 ) , Gloria on the television series Touched by an Angel ( 2001-2003 ) and Melanie Moretti on the sitcom Hot in Cleveland ( 2010 â `` present ) .