Guest Stars Nicole Fiscella as Isabel Coates Sebastian Stan as Carter Baizen Nan Zhang as Kati Farkas Caroline Lagerfelt as Celia "CeCe" Rhodes Susan Misner as Alison Humphrey Co Starring Zuzanna Szadkowski as Dorota Kishlovsky Beth Fowler as Mistress of Ceremonies Edward James Hyland as Chuck's Driver André Blake as New York Times Journalist Paul Niebanck as Tailor Zander Gladish as Prince Theodore Uncredited Kristen Bell voices Gossip Girl
