Main Characters Arthur Herbert "Fonzie" Fonzarelli 54 main appearances Marion "Mrs. C" Cunningham 54 main appearances Howard C. Cunningham 54 main appearances Joanie Louise Cunningham 48 main appearances Warren "Potsie" Weber 44 main appearances Richard J. "Richie" Cunningham 37 main appearances Ralph Malph 37 main appearances Charles "Chachi" Arcola 18 main appearances Alfredo "Al" Delvecchio 13 main appearances Roger Phillips 8 main appearances Lori Beth Allen Cunningham 8 main appearances Ashley Pfister 5 main appearances Jenny Piccalo 6 main appearances
Recurring Guest Characters Joanie Louise Cunningham 1 guest appearances Arnold 26 guest appearances Roger Phillips 1 guest appearances Ashley Pfister 3 guest appearances Jenny Piccalo 1 guest appearances Chuck Cunningham 6 guest appearances Laverne DeFazio 5 guest appearances Pinky Tuscadero 3 guest appearances Uncle Joe 2 guest appearances Trudy 2 guest appearances Marsha Simms 2 guest appearances Mork 2 guest appearances Mr. Kendall 1 guest appearances Mrs. Friedman 1 guest appearances Alex Johnson 1 guest appearances Martin Smith 1 guest appearances Mickey 1 guest appearances Dennis Morton 1 guest appearances Mr. MacKenzie 1 guest appearances Stretch 1 guest appearances ⇤ « 1 2 3 4 » ⇥