Special Guest Stars Steve Kazee as Gus Pfender Justin Chatwin as Jimmy Lishman Guest Stars Michael Patrick McGill as Tommy Isidora Goreshter as Svetlana Yevgenivna Kellen Michael as Chuckie Slott Vanessa Bell Calloway as Carol Fisher Danika Yarosh as Holly Herkimer Rebecca Metz as Melinda Dichen Lachman as Angela Luca Oriel as Derek Delgado Michael B. Silver as Lorenzo Susan Chuang as Dr. Kathy Beard Lee Simpson as Roger Wayne Federman as Norman Co Starring Brenden Sims as Liam Gallagher Thomas Barbusca as Remedial Kid Nick Peine as Lenny Jennifer DeFilippo as Teacher Kyle Beatty as Scott Seth Lucas Bowen as Johnny Ellen Etten as Nurse Eduardo Ortiz as Guard Mike Tepeli as Omar Conor Woods as Bobby Ryan Barton as Wyatt Gary Houston as Clerk