who starred in happy days
On April 19, 2011, five Happy Days co-stars; Erin Moran, Don Most, Marion Ross, Anson Williams and the estate of Tom Bosley, who died in 2010, filed a $10 million breach-of-contract lawsuit against CBS, which owns the show, claiming they had not been paid for merchandising revenues owed under their contracts.
The show was originally based on a segment from ABC's Love, American Style titled Love and the Television Set, (later retitled Love and the Happy Days for syndication) featuring future cast members Ron Howard, Marion Ross and Anson Williams.
Robin Williams made his first appearance as Mork on Happy Days. In his own sitcom, Mork & Mindy, his character of Mork, the alien from the planet Ork, landed in 1970s Boulder, Colorado, to study humans and took up residence with Pam Dawber's character of Mindy McConnell.