Annette Mastorelli was a character who appeared on the Happy Days spinoff Joanie Loves Chachi. The part of Rico was played by Winifred Freedman.
About Annette[]
On Joanie Loves Chachi, Annette helps her dad Rico Mastorelli (Art Metrano), who's Chachi's uncle and his mom Louisa's brother, out in managing the careers of Chachi, Joanie and the band. and the band they sing lead for in Chicago.