Ron Howard Richie Cunningham Actor Henry Winkler Arthur "Fonzie" Fonzarelli Actor Tom Bosley Howard Cunningham Actor Marion Ross Marion Cunningham Actor Erin Moran Joanie Cunningham Actor Scott Baio Chachi Arcola Guest Star Cathy Silvers Jenny Piccalo Guest Star Danny Ponce Danny Guest Star Pamela Dunlap Doris Charles Guest Star Meridith Baer Judy Guest Star Tom Silardi Tony Guest Star Jerry Paris Director