Ron Howard Richie Cunningham Actor Henry Winkler Arthur "Fonzie" Fonzarelli Actor Tom Bosley Howard Cunningham Actor Marion Ross Marion Cunningham Actor Anson Williams Warren "Potsie" Weber Actor Don Most Ralph Malph Actor Erin Moran Joanie Cunningham Actor Al Molinaro Al Delvecchio Guest Star Lynda Goodfriend Kim Guest Star Roz Kelly Pinky Tuscadero Guest Star Dick Van Patten Mr. Conners Guest Star Ed Peck Sheriff Kirk Guest Star Michael Pataki Count Mallachi Guest Star Charles Galioto Angie Guest Star Ken Lerner Rocco Guest Star Marc McClure Jimmy Bradkip Guest Star Paul Linke Bruiser Guest Star Doris Hess Tina Guest Star Kelly Sanders Lola Guest Star Sally Hightower Sylvia Guest Star Jerry Paris Director