| Stephen Dorff | ... | Ross Tanner / ... (Episodes, 2008) |
 | Caterina Murino | ... | Sam (Episodes, 2008) |
| Greg Bryk | ... | Colonel Amos (Episodes, 2008) |
| Stephen McHattie | ... | General Carrington (Episodes, 2008) |
| Lucinda Davis | ... | Jones (Episodes, 2008) |
| Jonathan Higgins | ... | Calvin Wax (Episodes, 2008) |
| Ted Atherton | ... | Wally Sheridan (Episodes, 2008) |
| John Bourgeois | ... | President Galbrain (Episodes, 2008) |
| Jessalyn Gilsig | ... | Kim Rowland (Episodes, 2008) |
| Mimi Kuzyk | ... | Sally Sheridan (Episodes, 2008) |
| Cedric Smith | ... | Abe Miller (Episodes, 2008) |
| Barbara Gordon | ... | Martha Miller (Episodes, 2008) |
| Val Kilmer | ... | La Mangouste (Episodes, 2008) |
| Luke Vitale | ... | Agent Stanwell (Episodes, 2008) |
| Gouchy Boy | ... | Malick (Episodes, 2008) |
| Todd Sandomirsky | ... | Agent Kohn (Episodes, 2008) |
| Andrew Jackson | ... | Roger Deakins (Episodes, 2008) |
| Dan Duran | ... | Warren Glass (Episodes, 2008) |
| Daniel DeSanto | ... | T.A. (Episodes, 2008) |
| Matt Baram | ... | NSA Coroner (Episodes, 2008) |
| Julian Richings | ... | Mr. Cody (Episodes, 2008) |
| Victoria Goring | ... | Bethesda Bystander (Episodes, 2008) |
| Hrant Alianak | ... | Dr. Kimmler (Episodes, 2008) |
| Catherine Swing | ... | Debate Moderator (Episodes, 2008) |
| Rachelle White Wind Arbez | ... | Homeland Security Agent (Episodes, 2008) |
| Roland Rothchild | ... | Homeland Security Agent (Episodes, 2008) |
| Ronn Sarosiak | ... | Norman Ryder (Episodes, 2008) |
| Nigel Shawn Williams | ... | Ellery Shipley (Episodes, 2008) |
| Jacqueline Pillon | ... | XX (Episodes, 2008) |
| Peter James Haworth | ... | Jasper Winthrow (Episodes, 2008) |
| Patrick Hayes | ... | Policier Bethesda (Episodes, 2008) |
| J.C. Kenny | ... | Journaliste Arlington (Episodes, 2008) |
| Donna Skelly | ... | Présentateur (Episodes, 2008) |
| Scott Wickware | ... | Agent McCall (Episodes, 2008) |
| Dave Dunham | ... | White House Aide (Episodes, 2008) |
| Arthur Corishti | ... | Cabbie (Episodes, 2008) |
