Guest Stars David Labrava as Happy Lowman Michael Ornstein as Chuck Marstein Emilio Rivera as Marcus Alvarez McNally Sagal as Margaret Murphy Kenny Johnson as Kozik Titus Welliver as Jimmy O'Phelan Paula Malcomson as Maureen Ashby Jose Pablo Cantillo as Hector Salazar James Cosmo as Father Kellan Ashby Bob McCracken as Brendan Roarke Taryn Manning as Cherry Zoe Boyle as Trinity Ashby Dan Hildebrand as Sean Casey Andy McPhee as Keith McGee Bart McCarthy as Declan Brogan Arie Verveen as Liam O'Neill Joel Tobeck as Donny Darin Heames as Seamus Ryan Paul Collins as Dooley Co Starring Christopher Douglas Reed as Philip 'Filthy Phil' Russell Frank Potter as Eric Miles Tara Macken as Luisa Dan Conroy as Timothy Michelle Diaz as Diana Alvarez