Advertisement'Shameless': A Family That Sticks (Just Barely) TogetherJanuary 07, 2011Linda HolmesfacebookEmailCameron Monaghan as Ian, Jeremy White as Lip, Blake/Brennan Johnson as Liam, Justin Chatwin as Steve, Emmy Rossum as Fiona Gallagher, Emma Kenney as Debbie, and Ethan Cutkosky as Carl in Showtime's new Shameless. (Showtime)