Guest Stars Connor Paolo as Eric van der Woodsen Zuzanna Szadkowski as Dorota Kishlovsky Michelle Trachtenberg as Georgina Sparks Sebastian Stan as Carter Baizen Chris Riggi as Scott Rosson JoAnna Garcia Swisher as Bree Buckley Co Starring Aaron Schwartz as Vanya Benita Robledo as Amalia Valentina de Angelis as Carmen Fortier Meg McCrossen as Jane Trapp Sarah Marable as Celeste Kim Gordon as Herself Uncredited Kristen Bell voices Gossip Girl