During Fiona's wedding Debbie shows up at the church with Franny, and Frank arrives uninvited and high, and reveals that Sean is still a practicing junkie. Meanwhile, Ian brings Caleb to meet the family; and Sean tries to do everything he can to keep his son in his life.
Elenco: William H. Macy , Emmy Rossum , Jeremy Allen White , Cameron Monaghan , Emma Kenney , Ethan Cutkosky , Steve Howey , Shanola Hampton , Joan Cusack , Noel Fisher , Noel Fisher , Shanola Hampton , Stephanie Fantauzzi , Steve Howey , Zach McGowan .