• 
  Dennis Hopper

  Col. Eli McNulty (23 episodes, 2005-2006)
• 
  Leonor Varela

  Lt. Col. Cat Rodriguez (1 episode, 2005)
• 
  Alan Dale

  Raymond Metcalf
• 
  Andrew McCarthy

  Aaron Gerrity
• 
  Ashley Williams

  Beth Wilkerson
• 
  Richard Kind

  Asst. Public Affairs Sec. Danton Murphy (2 episodes, 2005)
• 
  Joe Morton

  Steven Algazi (9 episodes, 2005-2006)
• 
  Joel David Moore

  Greg - NSA Liaison (5 episodes, 2005-2006)

• 
  Ken Luckey

  Soldier (1 episode, 2005)
• 
  Deirdre Quinn

  Sharon Starkey (1 episode, 2005)
• 
  Laurie Fortier

  Dr. Valerie Levin (1 episode, 2006)
• 
  Ryan Cutrona
• 
  Aunjanue Ellis-Taylor

  MSgt. Jocelyn Pierce (23 episodes, 2005-2006)
• 
  Annie Wersching
• 
  Michael Hyatt

  Agent Kathryn Thompson (2 episodes, 2005)

• 
  Michael Terry

  American Boy (1 episode, 2006)
• 
  Benjamin Bratt

  Maj. Jim Tisnewski  (23 episodes, 2005-2006)
• 
  Bruce Thomas

  Dr. Wolfe (1 episode, 2006)
• 
  Tony Perez

  Mr. Navarro (1 episode, 2005)
• 
  Max Arciniega

  Air Traffic Controller (1 episode, 2006)
• 
  Kevin Alejandro

  Miguel Carrera (1 episode, 2006)
• 
  Denyse Tontz

  Princess Gabrielle (1 episode, 2006)
• 
  Henri Lubatti
• 
  Henry Barrial

  Professor Guillermo De La Serra (1 episode, 2006)
• 
  Kirk B.R. Woller

  CIA Deputy Inspector General Mitchell Sykes (2 episodes, 2005)
• 
  Nicholas Kadi

  Muezzin (1 episode, 2005)
• 
  Ron Bottitta

  SAS Col. Nigel Baggs (1 episode, 2006)
• 
  Evan Parke
• 
  Jack Conley
• 
  Matthew Glave

  CIA Agt. John Haines (1 episode, 2005)
• 
  Bob Gunton

  General Hughes (3 episodes, 2006)
• 
  Sasha Alexander

  Allyson Merrill
• 
  Matthew John Armstrong

  Genuzzi (1 episode, 2006)
• 
  Merik Tadros

  News Anchor (1 episode, 2006)
• 
  Mel Fair

  Leland Kirkus (1 episode, 2006)
• 
  Matt Gerald

  Robbie Benvenuto (1 episode, 2005)
• 
  Alex Fernandez

  Jose Aguilar (2 episodes, 2005)
• 
  Lucila Solá

  ETA Representative (1 episode, 2006)
• 
  Josh Clark

  General Ellis (1 episode, 2006)
• 
  Julia Levy-Boeken

  Erika (1 episode, 2006)
• 
  Al Whiting

  Military (6 episodes, 2005)
• 
  Robert Joy

  Mark Boskovich (1 episode, 2005)
• 
  Stephen Mendillo
• 
  Adair Tishler

  Ivan's Daughter (1 episode, 2006)
• 
  Rizwan Manji

  Officer ISI (1 episode, 2006)
• 
  Jared Day

  Christian Crusader  (2 episodes, 2005)
• 
  Jaime Ray Newman

  Natalie Hughes (4 episodes, 2006)
• 
  Billy Brown

  MSgt. Meeks (3 episodes, 2005-2006)
• 
  Ilia Volok

  Petrovich (1 episode, 2006)
• 
  Rosemary Garris

  Hostage (1 episode, 2006)
• 
  Cas Anvar

  Nasir (1 episode, 2006)
• 
  Mel Harris

  U.S.Ambassador to Spain (1 episode, 2006)
• 
  Travis Wester

  Marine Michael Delroy (2 episodes, 2005)
• 
  Steven Schub

  CIA Watch Commander (2 episodes, 2005)
• 
  Ankur Bhatt

  Javed Bakar (3 episodes, 2006)
• 
  Jonathan Banks

  Adm. Cooper - Dir. of Joint Staff  (4 episodes, 2005)
• 
  Spencer Garrett

  Norman 'Doc' Wiley (1 episode, 2006)
• 
  Robert Picardo

  Larry Kincaid (4 episodes, 2005-2006)
• 
  Richard Partlow

  Inspector General (1 episode, 2005)
• 
  Joel Bryant

  Grimy Chief (1 episode, 2006)
• 
  David Mattey

  Chechen Bodyguard (2 episodes, 2005)
• 
  Marshall Bell

  Col. James Tisnewski, Sr., USMC Ret. (1 episode, 2005)
• 
  Hrach Titizian

  Ziad (1 episode, 2006)
• 
  Kevin Sizemore

  Intelligence Officer Cole (2 episodes, 2005)
• 
  Maggie Wheeler

  Investigator (1 episode, 2005)
• 
  Gonzalo Menendez

  Agent Danny Marco (1 episode, 2005)
• 
  Ajay Mehta

  General Hafeez (1 episode, 2006)
• 
  Chad Everett

  Gen. Long - Army Chief of Staff (1 episode, 2006)
• 
  Alexander von Roon

  Lieutenant Colonel (1 episode, 2005)
• 
  Kelly Rutherford

  Samantha 'Sonny' Liston (21 episodes, 2005-2006)
• 
  Ethan Rains

  Adil Al-Masadi (1 episode, 2006)
• 
  Alex Carter

  Gen. Ian Maguire (1 episode, 2006)
• 
  Chase Kim

  Centcom Officer (1 episode, 2005)
• 
  Blake Robbins

  James Ogilvy (1 episode, 2006)
• 
  Jack Kehler

  Captain Shea (4 episodes, 2005-2006)
• 
  Eddie J. Fernandez

  Mexican Cop #2 (1 episode, 2006)
• 
  Maurizio Rasti

  Aasim (1 episode, 2006)
• 
  Michael Wiseman

  Commander (2 episodes, 2005)
• 
  Katrina Begin

  Lila Sutter (1 episode, 2005)
• 
  Patrick Fischler

  Mark Sinclair (1 episode, 2005)
• 
  Jennifer Dorogi

  Reporter (1 episode, 2005)
• 
  Byrne Offutt

  Rick Weston (1 episode, 2005)
• 
  Sarah Clarke

  Jim's Wife (1 episode)
• 
  Patrick Sabongui

  Man (1 episode, 2006)
• 
  Bernard White

  Iman Houchi Kazemi (1 episode, 2005)
• 
  Tom Wright

  General Kuwendi, Suriname Attache (1 episode, 2005)
• 
  Chris Gartin

  Brian Sheffer (1 episode, 2006)
• 
  Tino Struckmann

  Army Officer  (3 episodes, 2005-2006)
• 
  Adam Leadbeater

  Royal M.P. (1 episode, 2006)
• 
  Madison Mason

  Chairman of Joint Chiefs (2 episodes, 2005)
• 
  Susan Chuang

  Captain Trish Wong (1 episode, 2005)
• 
  Kerr Smith

  Bobby Wilkerson (15 episodes, 2005-2006)
• 
  Sam Hennings

  Col. David Lindstrom (2 episodes, 2005-2006)
• 
  Mark Derwin

  Captain Miller (1 episode, 2006)
• 
  Max Decker

  Alejandro Aguilar (2 episodes, 2005)
• 
  Christopher Stapleton

  Lt. Joshua Lindquist (1 episode, 2006)
• 
  Brad Beyer

  Damon (2 episodes, 2006)
• 
  Jonathan Penner

  FBI Agent Jaffe (1 episode, 2006)
• 
  Dominic Rains

  Omar Al-Masadi (1 episode, 2006)
• 
  James Handy

  Congressman Hal Lovett (1 episode, 2005)
• 
  Ned Vaughn

  Lieutenant Bradshaw (1 episode, 2005)
• 
  Billy D. Lucas

  Seal #1 (1 episode, 2005)
• 
  Kyme
• 
  Rene Rivera

  Javier Catalan (1 episode, 2005)
• 
  Eyal Podell
• 
  Oris Erhuero
• 
  Elizabeth Sung

  Kit Yee's Mother (1 episode, 2005)
• 
  Kristin Richardson

  Princess Amelia (1 episode, 2006)
• 
  Fredric Lehne

  General Moyer (1 episode, 2006)
• 
  Gabriel Olds

  Richard Woodley (1 episode, 2005)
• 
  Richard Lawson
• 
  Maurice Compte

  Charlie Gutierrez

• 
  David McKenna

  producător