According to papers obtained by EW, several Happy Days stars — and the estate of late actor Tom Bosley — have filed a lawsuit against CBS, claiming the network violated breach of contract by cutting them out of merchandising revenues. Anson Williams, Don Most, Marion Ross, Erin Moran, and the Bosley estate, the suit says, were guaranteed 5 percent of royalties profits if their images appeared on a product. The suit, filed in Los Angeles Superior Court, is asking for $10 million; the plaintiffs claim they are owed millions. A CBS spokesperson said in response to the lawsuit, “We agree that funds are owed to the actors and have been working with them for quite some time to resolve the issue.”