Guest Stars Jessica Szohr as Vanessa Abrams Connor Paolo as Eric van der Woodsen Margaret Colin as Eleanor Waldorf Robert John Burke as Bart Bass John Shea as Harold Waldorf Susan Misner as Alison Humphrey William Abadie as Roman Derek Cecil as Alex Austin Lysy as Freddy Parnes John Dossett as Jack Roth Co Starring Zuzanna Szadkowski as Dorota Kishlovsky Uncredited Kristen Bell voices Gossip Girl