Musical / Characters: 10m, 7f, Cast can be expanded for large groups Goodbye gray skies, hello blue Happy days are here again with Richie, Potsie, Ralph Malph and the unforgettable king of cool Arthur The Fonz Fonzarelli. Based on the hit Paramount Pictures television series, Happy Days, A New Musical reintroduces one of America's best loved families, the Cunninghams - yes, Howard, Marion and Joanie are here too - to a whole new generation of kids and parents. The famed drive-in malt sh | Happy Days - A Musical by Garry Marshall, Paperback | Indigo Chapters