| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 David Seltzer | Crew | Writing | Characters | 10 |
 Glen Mazzara | Crew | Creator | Creator | |
 Alexandra Castillo | Cast | Actress | Arlene (as Alex Castillo) | 1 |
 Aviva Armour-Ostroff | Cast | Actress | Nun #3 | 1 |
 Barbara Hershey | Cast | Actress | Ann Rutledge | 10 |
 Bess Armstrong | Cast | Actress | Mrs. Thorn | 1 |
 Bruno Verdoni | Cast | Actor | Troy Hendrie | 1 |
 Claire Rankin | Cast | Actress | Dr. Matthews | 2 |
 Colleen Reynolds | Cast | Actress | Nun #4 | 1 |
 Daniel Kash | Cast | Actor | Captain McGarry | 4 |
 Daniel Matmor | Cast | Monsignor | 1 | |
 David Ferry | Cast | Actor | Marlo Heany | 1 |
 Duncan McLeod | Cast | Actor | Ski Mask #2 | 1 |
 Elisa Moolecherry | Cast | Actress | Tamara Quiroz | 1 |
 Fulvio Cecere | Cast | Actor | Captain Dislo | 2 |
Gino Marrocco | Cast | Actor | Older Priest | 1 |
 Jamie Robinson | Cast | Actor | Detective Karlsson | 1 |
Jon Welch | Cast | Actor | Soldier #7 | 1 |
 Kyra Harper | Cast | Actress | Dr. Rose | 1 |
 Lubomir Mykytiuk | Cast | Actor | Father Bernado | 1 |
 Megalyn Echikunwoke | Cast | Actress | Simone Baptiste | 10 |
 Michael Dyson | Cast | Actor | Welder George | 1 |
 Michael Therriault | Cast | Actor | Patrick | 5 |
 Michelle Krusiec | Cast | Actress | Fumika Eiko | 1 |
 Nick Alachiotis | Cast | Actor | Henchman / Paramedic #2 | 1 |
 Nicky Guadagni | Cast | Actress | Margot Lyons | 1 |
 Paul De La Rosa | Cast | Actor | Mr. Baptiste | 1 |
 Robin Weigert | Cast | Actress | Sister Greta Fraueva | 6 |
 Salvatore Antonio | Cast | Actor | Mr. Smigel / Jesus #2 | 1 |
 Sam Anderson | Cast | Actor | Professor Igor Reneus | 1 |
 Sandrine Holt | Cast | Actress | Paula Sciarra | 2 |
 Scott Wilson | Cast | Actor | John Lyons | 5 |
 Sean Sullivan | Cast | Actor | Doc | 1 |
 Cody Ray Thompson | Cast | Actor | Cray Marquand | 2 |
Craig Snoyer | Cast | Actor | Soldier | 1 |
 Darryl Dinn | Cast | Man in Isolation | 1 | |
 David Meunier | Cast | Actor | James Shay | 9 |
 James Cade | Cast | Actor | Ed Bone | 2 |
 Jose Pablo Cantillo | Cast | Actor | Alex | 1 |
 Juan Carlos Velis | Cast | Actor | Father Frank Esparza | 4 |
Katie Bergin | Cast | Actress | Paula | 1 |
 Melanie Scrofano | Cast | Actress | Veronica Selvaggio | 6 |
 Omid Abtahi | Cast | Actor | Amani Golkar | 10 |
 Tiffany Hines | Cast | Actress | Kelly Baptiste (uncredited) | 1 |
 Bradley James | Cast | Actor | Damien Thorn | 10 |
 Kelly McCormack | Cast | Actress | Tara | 1 |
 Luis Fernandes | Cast | Actor | Soldier #3 | 1 |
 Ryan Turner | Cast | Actor | U.S. Mercenary | 1 |
 Alex Spencer | Cast | Actor | Security Guard Dale | 1 |
 Kate Drummond | Cast | Actress | Joann | 1 |
 Katie Nicole Evans | Cast | Candy Striper | 1 | |
 Kim Nelson | Cast | Actress | Soldier #4 | 1 |
 Alex McCooeye | Cast | Actor | Jesus Jaspers | 1 |
 Brody Bover | Cast | Jacob Shay | 4 | |
 Gianpaolo Venuta | Cast | Actor | Hermon Soroyan | 1 |
Christopher Dyson | Cast | Actor | Soldier #5 (as Chris Dyson) | 1 |
Terry Czerlau | Cast | Virgil | 1 | |
 Alli Chung | Cast | Actress | Melissa | 1 |
 Sara Garcia | Cast | Actress | Claudia | 2 |
Larry Mannell | Cast | Mr. Panic | 1 | |
 Chadwick Allen | Cast | Actor | Soldier #6 | 1 |
 Abanoub Andraous | Cast | Soldier | 1 | |
 Bola Aiyeola | Cast | Actress | Mrs. Baptiste | 2 |
 Vivien Moore | Cast | Actress | Old Woman / Abaddon | 1 |
 Barbara de la Fuente | Cast | Actress | Mother | 1 |
Lok Archer | Cast | Actor | Immigrant Husband | 1 |
 Neven Pajkic | Cast | Actor | Henchman / Paramedic #1 | 1 |
 Andrea Drepaul | Cast | Actress | Nurse Holly | 1 |
 Tony Nash | Cast | Actor | Syrian Captain (as Tony Nashed) | 1 |
 Lise Cormier | Cast | Actress | Wall Demon #5 | 1 |
Todd Dulmage | Cast | Actor | Doctor | 1 |
 Joe Doyle | Cast | Actor | Charles Powell | 2 |
 Sebastian MacLean | Cast | Actor | Passerby | 1 |
 Meghan Allen | Cast | Nun #2 | 2 | |
 Nicky Lawrence | Cast | Actress | Nurse | 1 |
 Madison Oldroyd | Cast | Actress | Little Girl | 4 |
Ian Rosenberg | Cast | Young Man | 1 | |
Fodé Bangoura | Cast | Babalawo | 1 | |
Gregory Meyers | Cast | Officer Bobby | 1 | |
Gail Roberts | Cast | Smoking Patient | 1 | |
Ruth Madoc-Jones | Cast | Actress | Nun #1 | 2 |
Caitlin Stewart | Cast | Actress | Wall Demon #1 | 1 |
Sarah Gale | Cast | Jackie | 1 | |
 Leighton Alexander Williams | Cast | Actor | Soldier #2 | 1 |
| Person | Type | Job | Role(s) | Episodes |
