FX has added three more cast members to its series Fargo, which is based on the Coen brothers’ 1996 film. Private Practice’s Kate Walsh signed on as a “a trophy wife-type and reluctant mother of twin sons†while Josh Close will play Ron, “the brother of Martin Freeman’s small-town insurance salesman Lester Nygaard.†Joey King, who can also be seen in Zach Braff’s Kickstarter-funded project, rounds out a cast that also includes Billy Bob Thornton, Oliver Platt, and Colin Hanks. Joel and Ethan Coen are executive producing the upcoming ten-episode run.