Ηθοποιοί

• Ron Howard — Richard 'Richie' Cunningham
• Henry Winkler — Arthur 'Fonzie' Fonzarelli
• Tom Bosley — Howard Cunningham
• Marion Ross — Marion Cunningham
• Scott Baio — Charles 'Chachi' Arcola
• Erin Moran — Joanie Cunningham
• Don Most — Ralph Malph
• Anson Williams — Warren 'Potsie' Weber
• Ted McGinley — Roger Phillips
• Al Molinaro — Alfred 'Al' Delvecchio
• Linda Purl — Ashley Pfister
• Cathy Silvers — Jenny Piccalo
• Lynda Goodfriend — Lori Beth