SEASON PREMIERE: Season 4 begins with Grace and Frankie (Jane Fonda, Lily Tomlin) separated by distance, and trying to maintain their friendship long-distance. Sam Waterston and Martin Sheen, as their exes, are still around, even though Waterston just co-starred in another Netflix series, last year’s great new Western, Godless. And this year, as Frankie pursues the artists’ life in Santa Fe, Grace eventually gets a new roommate, played by Lisa Kudrow, who joins Grace and Frankie this season as a series regular.