- Martin Shaw
- Â Father Jacob 6 episodes, 2008
- Rick Warden
- Â Astaruth / ... 6 episodes, 2008
- Siobhan Finneran
- Â Sister Ruth 5 episodes, 2008
- John Shrapnel
- Â Cardinal Bukovak 5 episodes, 2008
- Luigi Diberti
- Â Monsignor Vincenzo 4 episodes, 2008
- David Gyasi
- Â Father Daniel 2 episodes, 2008
- Romy Irving
- Â Donna 2 episodes, 2008
- Shaun Dooley
- Â Liam 2 episodes, 2008
- Michelle Joseph
- Â Sister Anne 2 episodes, 2008
- Sarah-Jayne Steed
- Â Sarah 2 episodes, 2008
- Mia Fernandez
- Â Fiona 2 episodes, 2008
- Neil Pearson
- Â Governor Lassiter 1 episode, 2008
- Hassani Shapi
- Â Imam Ahmed 1 episode, 2008
- Guido Adorni
- Â Priest 1 episode, 2008
- Ruth Posner
- Â Rosa Fonti 1 episode, 2008
- Jamie Blackley
- Â Zaid Kopavic 1 episode, 2008
- Karen Bryson
- Â Zoe Dayton 1 episode, 2008
- Sam Mancuso
- Â Archbishop 1 episode, 2008
- Claudia Harrison
- Â Dr. Janice Greely 1 episode, 2008
- Brana Bajic
- Â Sana Kopavic 1 episode, 2008
- Shyam Chudasama
- Â Young Vimal 1 episode, 2008
- Stephen Wight
- Â Corey Wardell 1 episode, 2008
- Claire Price
- Â Dr. Elaine Errison 1 episode, 2008
- Patrick Knowles
- Â Misal Kopavic 1 episode, 2008
- Stephanie Street
- Â D.I. Rachel 1 episode, 2008
- Antonia Whillans
- Â Girl 1 episode, 2008
- Conrad Nelson
- Â Inmate 1 episode, 2008
- Andy Dear
- Â Craig 1 episode, 2008
- Cherie Lunghi
- Â Woman 1 episode, 2008
- Adrian Bower
- Â Simon 1 episode, 2008
- Linda Jane Holmes
- Â Mrs. Wardell 1 episode, 2008
- Elyes Gabel
- Â Vimal 1 episode, 2008
- Jo Woodcock
- Â Lisa Sengrath 1 episode, 2008
- Vernon Dobtcheff
- Â Pietro Fonti 1 episode, 2008
- Michelle Bonnard
- Â Sandra Tellor 1 episode, 2008
- Patrick Bridgman
- Â George 1 episode, 2008
- Josephine Amankwah
- Â Soprano 1 episode, 2008
- Elizabeth Berrington
- Â Kim Portman 1 episode, 2008
- Adam Zane
- Â Police Officer 1 episode, 2008
- Jenna Southworth
- Â Mary Portman 1 episode, 2008
- Federico Natoli
- Â Alessandro Serenelli 1 episode, 2008
- Don Gayle
- Â Church Bearer / ... (uncredited) 2 episodes, 2008
- Nico Toffoli
- Â Vatican's Secret Services Agent (uncredited) 1 episode, 2008
- William Atkinson
- Â Father Alan (uncredited) 1 episode, 2008
- Daniel Bowker
- Â Prisoner (uncredited) 1 episode, 2008
- Karl Rhodes
- Â Prisoner (uncredited) 1 episode, 2008
- Mike Dolan
- Â Police officer (2008) (uncredited) unknown episodes