EXCLUSIVE: OWN has set the lead cast for The Kings Of Napa, its new drama series about the power struggle between wealthy siblings in Napa Valley. Ebonee Noel (FBI), Rance Nix (Zero Issue), Karen LeBlanc (Ransom) and Yaani King Mondschein (For All Mankind) have been tapped to star in the series from Claws executive producer/showrunner Janine Sherman Barrois, Warner Bros. Television and Harpo Films.