Christopher Lloyd as Jim Ignatowski and Danny DeVito as Louie De Palma make the show. Their characters were hilarious and between them they supplied most of the genuine humor. Judd Hirsch, Marilu Henner, and Tony Danza were good characters who provided warmth and background. Jeff Conaway was so dull he was dumped halfway through season 4. Andy Kaufman as Latka Gravas was almost always annoying the the episodes that featured him were just silly. Carol Kane as Simka his wife tried hard but only had silly plots to work with.