| Name | Character | Episodes |
|---|---|---|
| Shantel VanSanten | Julie Swagger | 31 |
| Omar Epps | Isaac Johnson | 31 |
| Cynthia Addai-Robinson | Nadine Memphis | 31 |
| Ryan Phillippe | Bob Lee Swagger | 31 |
| Jesse Bradford | Harris Downey | 17 |
| Delaina Mitchell | Anna Wallingford | 12 |
| Gerald McRaney | Red Bama Sr. | 11 |
| Eddie McClintock | Jack Payne | 11 |
| Josh Stewart | Solotov | 9 |
| John Marshall Jones | Sheriff Brown | 8 |
| David Andrews | Sam Vincent | 8 |
| Gina Gallego | Estella | 8 |
| David Marciano | Howard Utey | 7 |
| Felisha Terrell | Carlita | 7 |
| Beverly D'Angelo | National Security Advisor Gregson | 6 |
| Derek Phillips | Earl Swagger | 6 |
| Tom Sizemore | Hugh Meachum | 6 |
| Patrick Sabongui | Yusuf Ali | 5 |
| Eric Ladin | Red Bama Jr. | 5 |
| Todd Lowe | Colin Dobbs | 5 |
| Rob Brown | Donny Fenn | 5 |
| Tait Blum | Young Bob Lee | 4 |
| Mallory Jansen | Margo | 4 |
| Troy Garity | Jeffrey Denning | 4 |
| Tony Amendola | Priest | 4 |
| Jaina Lee Ortiz | Angela Tio | 4 |
| Michelle Krusiec | Lin Johnson | 4 |
| Jerry Ferrara | Kirk Zehnder | 4 |
| Dave Florek | Dr. Wydra | 4 |
| Sean Cameron Michael | Grigory Krukov | 4 |
| Brendan McCarthy | Bo Winnick | 4 |
| Desmond Harrington | Lon Scott | 3 |
| Kurt Fuller | Mr. Gold | 3 |
| Michael O'Neill | Ray Brooks | 3 |
| Harry Hamlin | Addison Hayes | 3 |
| David Chisum | Jim Wallingford | 3 |
| Terrell Carter | Kevin Campbell | 3 |
| Jason Gedrick | Officer Timmons | 2 |
| Kristin Slaysman | Edie Poole | 2 |
| Billy Lush | Johnny Poole | 2 |
| José Zúñiga | Simon Porter | 2 |
| Raymond J. Barry | August Russo | 2 |
| Marlene Forte | Sister Beatrice | 2 |
| Elizabeth Blackmore | Katherine Mansfield | 2 |
| Stefanie von Pfetten | Kasper | 2 |
| Rhea Perlman | Supreme Court Justice Gibson | 2 |
| Anna Khaja | Gabina | 2 |
| Ravil Isyanov | Alexander Rosovich | 2 |
| Grant Harvey | Jimmy Poole | 2 |
| Jose Pablo Cantillo | Justin Singer | 2 |
| Conor O'Farrell | Rick Culp | 2 |
| Lindsay Pulsipher | June Swagger | 2 |
| Donzaleigh Abernathy | Mrs. Fenn | 2 |
| Hannah Rose May | Driscoll | 2 |
| Brian Letscher | Bert Salinger | 2 |
| Luca Oriel | Rodrigo | 2 |
| David Goldman | TV News Personality | 2 |
| Mustafa Haidari | Village Gunman | 2 |
| Sydney Wease | Suzy Poole | 2 |
| Eddie George | Ron Perkins | 2 |
| Katie Johnson | Sarah Beckett | 2 |
| William Fichtner | O'Brien | 1 |
| Chad Michael Collins | Young Ray Brooks | 1 |
| Dimiter D. Marinov | Russian Officer | 1 |
| Tierre Turner | Homeless Guy | 1 |
| Gene Farber | Vasily | 1 |
| Costa Ronin | Russian Ambassador | 1 |
| Castulo Guerra | Ramiro Dominguez | 1 |
| René Ashton | Female Reporter | 1 |
| Nelson Lee | Adam Lee | 1 |
| Randy Orton | James Richards | 1 |
| Benito Martinez | President Alvarez | 1 |
| Dee Wallace | Katherine Mayfield | 1 |
| Izabella Miko | Karlina Ordenko | 1 |
| Corin Nemec | 1 | |
| Allan Graf | Deputy McQuarrie | 1 |
| Amin Joseph | Martin Jacobs | 1 |
| Drew Seeley | Toby Sloane | 1 |
| Eric Allan Kramer | Paul Helling | 1 |
| Yancey Arias | John Dominguez | 1 |
| Sandy Martin | Adele Poole | 1 |
| Nestor Serrano | Chief Manuel Aceveda | 1 |
| Tony Plana | Guitierez | 1 |
| Kurt Max Runte | Ruffled Man | 1 |
| Jon Curry | Militia Man | 1 |
| Michael Dempsey | Veterinarian | 1 |
| Brian Oerly | Pavlo | 1 |
| Jay Hieron | Jose | 1 |
| Jay Hieron | Hulking Agent | 1 |
| Kamar de los Reyes | David Hall | 1 |
| Eddie McGee | Disabled Vet | 1 |
| Rhomeyn Johnson | Bank Guard | 1 |
| Adam J. Harrington | 1 | |
| Wilbur Fitzgerald | James Boyd | 1 |
| Carmen Argenziano | Charles Broadwell | 1 |
| David Marciano | John Renlow | 1 |
| Don Franklin | Agent Biller | 1 |
| Matt Bushell | Gar Winston | 1 |
| Tom Wright | Jason Colby | 1 |
| Carlease Burke | FBI Agent | 1 |
| Kayli Tran | Hue | 1 |
| Danielle Burgio | Waitress | 1 |
| Alex Feldman | Russian Embassy Guard | 1 |
| Chet Grissom | Customs Agent | 1 |
| Adam Johnson | Big Poole | 1 |
| Dale Pavinski | Hitman | 1 |
| Efka Kvaraciejus | Vigo | 1 |
| Eddie Perez | Cop | 1 |
| Catherine Haena Kim | Claire Hopkins | 1 |
| Tom Beyer | Gas Station Attendant | 1 |
| Steven G. Norfleet | Kill Team Leader | 1 |
| David Stuart | President - USA | 1 |
| Robert Moloney | Wolf Hunter | 1 |
| Vijessna Ferkic | Helga | 1 |
| Nick Gracer | Peter Petravich | 1 |
| Dale Godboldo | M.E. (Medical Examiner) | 1 |
| Carlos Leal | Solotov's Banker | 1 |
| Colleen Flynn | Memphis' FBI boss | 1 |
| Thomas Rosales Jr. | Armed Man | 1 |
| Chastity Dotson | Rebecca | 1 |
| Stephanie Maura Sanchez | Sergeant Walters | 1 |
| Celestino Cornielle | Tito | 1 |
| Justin Welborn | Prison Guard Raines | 1 |
| Chad Todhunter | Paparazzo | 1 |
| Jesse Luken | Pete | 1 |
| Zachary James Rukavina | Russian Soldier | 1 |
| Darin Cooper | Crawley | 1 |
| Bayardo De Murguia | David Tiejo | 1 |
| Matthew Law | Young Colby | 1 |
| Carin Chea | Press | 1 |
| Nancy Youngblut | Edie Poole | 1 |
| Chido Nwokocha | FBI Special Agent | 1 |
| Jim Garrity | Mark Celpo | 1 |
| Tim DeZarn | Clerk | 1 |
| Jun Kim | Mikey | 1 |
| Larry Sullivan | Dr. Mitchell | 1 |
| Lara Harris | Professor | 1 |
| Mike Justus | Suited Man | 1 |
| Rene Mousseux | Hitman | 1 |
| Shirley Jordan | Senator Daitch | 1 |
| Mehdi Merali | Waheed | 1 |
| Chiquita Fuller | Female Prison Guard | 1 |
| Freddie Poole | Federale | 1 |
| Iyad Hajjaj | Afghan Villager | 1 |
| Brian Kimmet | FBI Tech | 1 |
| Frank Trigg | Nathan | 1 |
| Austin Priester | Secret Service Agent | 1 |
| Leif Gantvoort | Cal Nix | 1 |
| David Bianchi | Security Guard Shemky | 1 |
| Owen Saxon | Delgado | 1 |
| Michael Segovia | O'Shea | 1 |
| Jose Vasquez | Prison Guard Driver | 1 |
| Jose Vasquez | Shooter | 1 |
| Chris Wu | Fisher County Officer | 1 |
| Dylan Rourke | Bro One | 1 |
| Greg Fitzpatrick | Main UN Escort | 1 |
| Sheila Shaw | Doris | 1 |
| Yousuf Azami | Mullah Abdul | 1 |
| Akrosia Samson | Adrienne | 1 |
| Eddie Aguirre | Officer Bayless | 1 |
| Karishma Ahluwalia | Computer Agent | 1 |
| Staci Lynn Fletcher | Supervising Guard | 1 |
| Robert DuBois | Supreme Court Guard | 1 |
| Teddy Lane Jr. | Evan | 1 |
| Owen Szabo | Alpha Two | 1 |
| Abraham Justice | Radio Taliban | 1 |
| Michael Rothhaar | Leo | 1 |
| David Andrew Nash | Campus Cop | 1 |
| Jeff Denton | CIRG Leader | 1 |
| Sasha Golberg | Russian Soldier | 1 |
| Alex Saxon | Joey Richards | 1 |
| Jessica Harbeck | Secret Service Driver | 1 |
| Ashton Moio | Young Cop | 1 |
| Curtis Lyons | Atlas Agent with Radio | 1 |
| Anthony Skordi | Maltese Consul | 1 |
| Tommie Earl Jenkins | Navy Commander | 1 |