LOS ANGELES, CA - Academy Award-winning actress Olympia Dukakis will guest star on "Worst Week" on the CBS Television Network. Dukakis will star as Melanie's paternal grandmother, June Clayton, in an episode titled "The Ring." In the episode she gives Melanie and Sam her grandparents' wedding rings for their own nuptials. Sam loses them and goes to great lengths to attempt to get them back before anyone finds out. This episode will air later this season. "Worst Week" airs Mondays (9:30-10:00 PM, ET/PT) on the CBS Television Network. "Worst Week" stars Kyle Bornheimer, Erinn Hayes, Nancy Lenehan and Kurtwood Smith.