Paul Abbott Creator William H. Macy Frank Gallagher Actor Emmy Rossum Fiona Gallagher Actor Ethan Cutkosky Carl Gallagher Actor Shanola Hampton Veronica Actor Steve Howey Kev Actor Emma Kenney Debbie Gallagher Actor Cameron Monaghan Ian Gallagher Actor Jeremy Allen White Lip Gallagher Actor Emily Bergl Sammi Gallagher Actor Noel Fisher Mickey Milkovich Actor Dermot Mulroney Sean Pierce Guest Star Steve Kazee Gus Pfender Guest Star Jenica Bergere LIsa Guest Star Mike Hagerty Ron Guest Star Brent Jennings Principal Monroe Guest Star José Julián Joaquin Guest Star Peter Macon Dominique's father Guest Star Jaylen Barron Dominique Guest Star Alan Rosenberg Professor Youens Guest Star Will Sasso Yanis Guest Star