“Entertainment Weekly” — Sarah Jessica Parker has found her new best friends. We’ve learned the Sex and the City star’s HBO comedy pilot Divorce has firmed up the rest of its cast.

In the show, which is billed as “the story of a very, very long divorce,” Parker plays Frances, a woman who suddenly begins to reassess her life and her marriage, and finds that making a clean break and a fresh start is harder than she thought. We can now reveal that Saturday Night Live’s Molly Shannon and Mad Men’s Talia Balsam have been cast her her two close friends. Thomas Haden Church (Sideways) has been signed as Frances’ husband.

Shannon will play Diane, Frances’ “high-strung friend who has a successful husband, a beautiful house, and no children.” Balsam is Dallas, Frances’ friend “who has been both widowed and divorced.”

If greenlit to series, Divorce will mark Parker’s return to HBO, where she starred as Carrie Bradshaw in the groundbreaking Sex and the City for six seasons and in two feature films.