Special Agent John Kilmer (16 episodes, 2003-2004)
Special Agent Frankie Ellroy-Kilmer (16 episodes, 2003-2004)
Colonel Roger Atkins (16 episodes, 2003-2004)
Mohammad 'Mo' Hassain (15 episodes, 2003-2004)
Jelani Harper (15 episodes, 2003-2004)
Lia 'Lark' Larkin (13 episodes, 2003-2004)
Reporter / Journalist #3 / Reporter #1 / Reporter #2 / Reporter #3 / Reporter No. 1 / Reporter No. 2 (10 episodes, 2003-2004)
Tim Vargas (9 episodes, 2003-2004)
Newscaster / D.C. Newscaster / DC Newscaster (8 episodes, 2003-2004)
Holly Brodeen / Holly (6 episodes, 2003-2004)
Agent Adam Anders (6 episodes, 2003-2004)
Carina Wright / NSA Agent Hodges (5 episodes, 2003-2004)
Reporter #1 / Reporter #2 / Reporter No. 1 / Reporter No. 2 (4 episodes, 2003-2004)
Agent Mia Chen (3 episodes, 2004)
Senator Lily Randolph (2 episodes, 2003-2004)
Bob Colt (1 episode, 2003-2004)
Billy (2 episodes, 2003)
Detective Fawk (2 episodes, 2003)
Military Police (2 episodes, 2004)
Frederick Vorn (1 episode, 2003)
Airport security guard #1 (1 episode, 2003)
Special Agent (1 episode, 2003)
Special Agent Nicole Hill (1 episode, 2003)
Shane (1 episode, 2003)
Staci (1 episode, 2003)
Dr. Nabila Hassan (1 episode, 2003)
Denise (1 episode, 2003)
Gillian Sadler (1 episode, 2003)
Campbell Prokop (1 episode, 2003)
Hannah McLoughlin (1 episode, 2003)
Carrie Richmond (1 episode, 2003)
Bobby DaCosta (1 episode, 2003)
Counter Waitress (1 episode, 2003)
CSAF Scott (1 episode, 2003)
Teddy (1 episode, 2003)
Capt. Hanson (1 episode, 2003)
Simone Benoit (1 episode, 2003)
Senator Otto (1 episode, 2003)
Konstantin Noskeno (1 episode, 2003)
Teen Boy (1 episode, 2003)
Alpha-126 (1 episode, 2003)
Waitress (1 episode, 2003)
Pvt. Perry (1 episode, 2003)
Tower Supervisor (1 episode, 2003)
Man in Black (1 episode, 2003)
Bartender (1 episode, 2003)
Broker #2 (1 episode, 2003)
Tom Shelby (1 episode, 2003)
Radenmacher (1 episode, 2003)
Amir Abadiyah (1 episode, 2003)
Reporter #3 (1 episode, 2003)
Joe (1 episode, 2003)
State Policeman (1 episode, 2003)
Silo Tech #1 (1 episode, 2003)
Mr. Kumala - Airport Manager (1 episode, 2003)
DEA Agent Maria Cruz (1 episode, 2003)
Marine#1 (1 episode, 2003)
Laura Shelby (1 episode, 2003)
Kenneth Holmes (1 episode, 2003)
Major (1 episode, 2003)
Yousef (1 episode, 2003)
Clerk (1 episode, 2003)
(1 episode, 2003)
Trevor (1 episode, 2003)
Checkout Clerk (1 episode, 2003)
Silo Tech #2 (1 episode, 2003)
Exchange Guard (1 episode, 2003)
Coach Sadler (1 episode, 2003)
Paramedic (1 episode, 2003)
Sal Miller (1 episode, 2003)
Baggage Supervisor (1 episode, 2003)
Reporter #2 (1 episode, 2003)
TAC Unit Member (1 episode, 2003)
General Tucker (1 episode, 2003)
Andrew Jefferson Prokop (1 episode, 2003)
Drug dealer (1 episode, 2003)
Army Surgeon (1 episode, 2003)
Baggage Handler (1 episode, 2003)
Camp Pendleton Security Chief Robert Burkehart (1 episode, 2003)
Self (1 episode, 2003)
News Anchorman (1 episode, 2003)
FBI Agent (1 episode, 2003)
Broker #1 (1 episode, 2003)
Hannah's Mother (1 episode, 2003)
Ben Tupper (1 episode, 2003)
Journalist #1 (1 episode, 2003)
Doctor (1 episode, 2003)
Teen Terrorist (1 episode, 2003)
Sheriff (1 episode, 2003)
Secret Service (1 episode, 2003)
Ralph (1 episode, 2003)
Young Boy (1 episode, 2003)
Oleg Kretzin (1 episode, 2003)
Captain Barkley (1 episode, 2003)
Border Guard (1 episode, 2003)
Gail Hopper (1 episode, 2003)
Nardino (1 episode, 2003)
Armed Courier (1 episode, 2003)
The Assassin (1 episode, 2003)
San Diego Newscaster (1 episode, 2003)
Vorn's Bodyguard (1 episode, 2003)
Fayez Ahmed / Tommy Smith (1 episode, 2003)
Mayor (1 episode, 2003)
Journalist #2 (1 episode, 2003)
Austin (1 episode, 2003)
Heath Shelby (1 episode, 2003)
Coroner (1 episode, 2003)
Gas Station Owner (1 episode, 2003)
Talk Show Host (1 episode, 2003)
Field Worker 2 (1 episode, 2003)
Detective Joe Miller (1 episode, 2003)
Melvin Pomeroy (1 episode, 2003)
Young Heath Shelby (1 episode, 2003)
Ham Bali (1 episode, 2003)
Arab American Teen #1 (1 episode, 2003)
FBI Agent #2 (1 episode, 2003)
Terrorist no1 (1 episode, 2003)
Old Lady (1 episode, 2003)
Bellman (1 episode, 2003)
Reporter #1 (1 episode, 2003)
Air Traffic Controller (1 episode, 2003)
Security Guard (1 episode, 2003)
Garbis (1 episode, 2003)
FBI Agent Crawford (1 episode, 2003)
Skouras (1 episode, 2003)
FBI Agent #1 (1 episode, 2003)
Dark-haired Man (1 episode, 2003)
Field Worker (1 episode, 2003)
Highway Patrolman (1 episode, 2003)
DC Cop (1 episode, 2003)
Customs Officer (1 episode, 2003)
Police Officer (1 episode, 2003)
Hotel Manager (1 episode, 2003)
Nurse (1 episode, 2003)
Senator Casper (1 episode, 2003)
Iraqi Woman (1 episode, 2003)
TAC Unit Leader (1 episode, 2003)
Young Soldier (1 episode, 2003)
Patrick (1 episode, 2003)
Arab Teen #2 (1 episode, 2003)
Frank Webster (1 episode, 2003)
Speaking Rebel (1 episode, 2003)
Husband (1 episode, 2003)
Muslim Cleric (1 episode, 2003)
Agent Daley (1 episode, 2004)
Ray Lee (1 episode, 2004)
Danny Roh (1 episode, 2004)
Peter Tomashevski (1 episode, 2004)
Anne Colt (1 episode, 2004)
Karen (1 episode, 2004)
Fred (1 episode, 2004)
Ibrahim Kureshi / Tom Purdy (1 episode, 2004)
Special Agent Wilmar Sanchez (1 episode, 2004)
Kang Sok-Joo (1 episode, 2004)
Senator Martin Cabrera (1 episode, 2004)
Ellis (1 episode, 2004)
The female pathologist (1 episode, 2004)
Vargas Killer (1 episode, 2004)
Billy (1 episode, 2004)
Ray Miller (1 episode, 2004)
Andy Wader (1 episode, 2004)
Victor Benitez (1 episode, 2004)
Security Guard (1 episode, 2004)
Juan Alcadar (1 episode, 2004)
Coast Guard Lieutenant James (1 episode, 2004)
Man (1 episode, 2004)
Korean Aide (1 episode, 2004)
Guard #2 (1 episode, 2004)
Honorable Justice Lamb (1 episode, 2004)
General Mendoza (1 episode, 2004)
Perro (1 episode, 2004)
Pilot (1 episode, 2004)
Ambassador Guzman (1 episode, 2004)
Martin Quintero (1 episode, 2004)
Daughter #1 (1 episode, 2004)
Judy Correy (1 episode, 2004)
Ephia Rasekh (1 episode, 2004)
Ahmed Ali Al Muhairi / Domingo Vara (1 episode, 2004)
Vega (1 episode, 2004)
Sam Bari (1 episode, 2004)
Manuel Gonzales (1 episode, 2004)
Min-Young (1 episode, 2004)
Mr. Packer (1 episode, 2004)
Dara Tep (1 episode, 2004)
Daniel Hemming (1 episode, 2004)
Raza's Wife (1 episode, 2004)
Asian Kidnapper No. 1 (1 episode, 2004)
The Man (1 episode, 2004)
Suryan Reza (1 episode, 2004)
(1 episode, 2004)
Asian Kidnapper No. 2 (1 episode, 2004)
DC Police (1 episode, 2004)
Reporter #2 (1 episode, 2004)
Khmer Tep (1 episode, 2004)
Holst / White Al Qaeda (1 episode, 2004)
Tech #3 (1 episode, 2004)
Bartender (1 episode, 2004)
Senator Penzler (1 episode, 2004)
James Gillespie (1 episode, 2004)
Ned Whitte (1 episode, 2004)
CIA Agent (1 episode, 2004)
Courtroom Bailiff (1 episode, 2004)
Cop (1 episode, 2004)
Dr. Kumar Rasekh (1 episode, 2004)
SWAT No.4 (1 episode, 2004)
German Phone Caller (1 episode, 2004)
Tech 1 (1 episode, 2004)
Paul West (1 episode, 2004)
Daughter #2 (1 episode, 2004)
Ron Brand (1 episode, 2004)
Young Dara Tep (1 episode, 2004)
Giovanna (1 episode, 2004)
Teenage Hostage (1 episode, 2004)
Laila (1 episode, 2004)
Weatherman (1 episode, 2004)
Woman Witness (uncredited) (1 episode, 2003)
Mom in Van Explosion (uncredited) (1 episode, 2003)
Teenage Girl (uncredited) (1 episode, 2003)
(uncredited) (1 episode, 2003)
General's Guard (uncredited) (1 episode, 2003)
Denise's Baby (uncredited) (1 episode, 2003)
The TV Correspondent (uncredited) (1 episode, 2004)
Doub / Ibrahim Kureshi / Tom Purdy (uncredited) (1 episode, 2004)