MusicalCharacters: 10 male, 7 female, Cast can be expanded for large groupsThis abridged, 90-minute version, is perfect for school 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, | Happy Days - A Musical (90 Minute Version) by Garry Marshall, Paperback | Indigo Chapters