Scott Baio Charles "Chachi" Arcola Actor Erin Moran Joanie Cunningham Actor Al Molinaro Al Delvecchio Actor Ellen Travolta Louisa Arcola Delvecchi Actor Art Metrano Uncle Rico Mastorelli Actor Robert Pierce Bingo Actor Derrel Maury Mario Mastorelli Actor Winifred Freedman Annette Actor John Tracy Director Lisa Kite Writer Cindy Begel Writer Cheryl Alu Writer Nancy Churnin Writer