| Pro | J.J. | Arrington | The head of Bureau's Criminal Investigative Division. |
| | Kelly | Arrington | Mr. Arrington's wife. |
| | | | Part 1 |
| 1 | John | Rain | A retired specialist from killings of "Natural Death". |
| | Daniel | Larison | Rain's friend. A black Op soldier. |
| | Matsuo | Basho | A Japanese poet. |
| | Scott | Horton | A speCops legend. Rain's former commander. |
| | | | speCops - A group of spies and assasins. |
| 2 | Livia | Lone | An FBI detective. Protagonist. |
| | Terry | Trahan | Livia's hacker. |
| | Nason | Lone | Livia's little sister. |
| 4 | | | ViCAP - The FBI's Violent Criminal Apprehension Program. |
| 5 | Delilah | | Rain's lover. A Mossad honeytrap specialist. |
| | Dox | | A former marine sniper. Was in love with Livia. Aka: Carl. |
| | Ben | Treven | A black Op soldier. |
| | Tomohisa | Kanezaki | Dox's contact in the CIA. Aka: K, Tom. |
| 6 | Special Agent | Smith | The head of VCAC. |
| | | | VCAC - The FBI's Violent Crimes Against Children Program. |
| 7 | B.D | Little | A Homeland security agent. |
| | Donna | Strangeland | The FBI lieutenant. |
| 9 | Jorge | | A tatted-up, former gangbanger. |
| | Kyla | | The new girl at the Martial Arts Academy. |
| 10 | Phil | Phelps | Livia's colleague. A detective. |
| | Rithisak | Sorm | The child trafficking kingpin. |
| 11 | Walter | Barkley | The front-runner in the Presidential election. |
| | Oliver | Graham | A former navy seal and founder and CEO of OGE. |
| | Mimi | Kei | Horton's daughter. |
| | Nico | | Larison's lover. |
| 15 | George | Washington | The 1st U.S. President. |
| | | | OGE - Oliver's company that was protecting child pornography. |
| | | | Part 2 |
| 16 | Ria | | The bartender. Dox's friend. |
| 19 | Charmaine | Best | The SPD's chief of police. |
| | Mia | | Strangeland's partner. Trauma surgeon at
U. of Washington. |
| | Lloyd | | Charmaine's assistant. |
| | Elbert | Tidbury | Charmaine's officer. |
| 20 | Ami | Treven | Ben's daughter. |
| | Alex | Treven | Ben's brother. |
| | Katie | Treven | Ben's sister. |
| 22 | Curtis | | Graham's assistant. |
| | Sarah | | Ben's ex-girlfriend. |
| 23 | Mr. | Bob | Owner of Bob's Automotive Repair shop. |
| 25 | Justin | | The Hangar Café Owner. |
| 27 | | | IAFIS - Integrated Automated Fingerprint Identification System. |
| 29 | Tatsu | | Rain's friend. A policeman in Japan. |
| | Dominique | Deneuve | A former fashion model. Graham's mistress. |
| 31 | | | CID - FBI's criminal investigative Division. |
| 35 | Jigoro | Kano | The founder of "The Gentle Way". |
| | Fred | Perrin | A knife designer. |
| | Fred | Lone | Livia's father. |
| 39 | Haruyoshi | Fukasawa | Rain's friend who owns a video-camera detector. Aka: Harry. |
| 43 | Kent | | Delilah's boyfriend. |
| | Colin | | A bartender. |
| 44 | Magnus | | Graham's bodyguard. |
| 51 | Garrison | Fenwick | The Senate majority leader. |
| | Charlie | Hamm | The chairman of armed services committee. |
| 54 | Matthew | Stroop | A man who was suspected as a park rapist. |
| | Sean | | Livia's first kiss. |
