In alphabetical order
"Andrei" — Black Flag Operative, Russian Group, assigned to Petrovich's Kazakhstan team
Audra Bauer — Deputy Director of National Clandestine Service
Karl Berg — CIA agent, National Clandestine Service liaison to Weapons of Mass Destruction Center
Dustin "Dusty" Bremer — CIA agent assigned to U.S. Embassy in Astana, Kazakhstan
Goran Brujic — Former paramilitary commander in Srecko Hadzic's White Panther criminal organization
Susan Castaneda — FBI Special Agent, Legal Attaché, U.S. Embassy in Buenos Aires, Argentina
Dr. Valeria Cherkasov — Emergency room doctor, Monchegorsk Central Hospital
Lieutenant Commander Scott Daly — U.S. Navy, SEAL, Assault Force Commander, Operation Bold Scimitar
Rear Admiral Mark DeSantos — U.S. Navy, Head of the Strategic Support Branch under DIA control
Major Stepan Eristov — Zaslon Group Spetznaz leader, Stockholm
Richard Farrington — Black Flag Operative, head of the Russian Group. Wanted by the FBI
Ernesto Galenden — Wealthy Argentinian business tycoon supporting General Sanderson's program
Lieutenant General Frank Gordon — U.S. Army, Head of Joint Special Operations Command
Josif Hadzic — Srecko Hadzic's nephew
Srecko Hadzic — Imprisoned Serbian war criminal, awaiting U.N. trial at the Hague, Netherlands
Eric Hesterman — FBI Special Agent, Domestic Terrorism Branch, Part of Ryan Sharpe's Task Force
Jared Hoffman — Black Flag Operative, sniper, trained by Daniel Petrovich
Konrad Hubner — Black Flagged Operative, European Group, Assigned to Stockholm operation
Darryl Jackson — Brown River Security Corporation executive
Miljan Jendzejec — Former enforcer in Srecko Hadzic's White Panther criminal organization
Alexei Kaparov — Deputy Counterterrorism Director, Federal Security Services, Russian Federation
Major General Bob Kearney — U.S. Army, Head of the Defense Intelligence Agency
Sarah Kestler — White House Counterterrorism Director
"Leo" — Black Flag Operative, Russian Group, assigned to Petrovich's Kazakhstan team
Sergeant Malyshev — Active duty Russian Army, assistant to Captain Sabitov
Thomas Manning — National Clandestine Service Director
Enrique "Rico" Melendez — Black Flag Operative, sniper, trained by Daniel Petrovich
Frank Mendoza — FBI Special Agent, Operations Section One, Al Qaeda Investigative Unit
Jeffrey Munoz — Black Flag Operative. Urban operations instructor, Wanted by the FBI
Brigadier General Lawrence Nichols — U.S. Marine Corps, Head of USMC Special Forces Command
Dana O'Reilly — FBI Special Agent, Domestic Terrorism Branch, Lead Analyst for Ryan Sharpe
Daniel Petrovich — Black Flag operative, aka Dario Russo, Marko Resja, Wanted by the FBI
Jessica Petrovich — Black Flag operative, aka Natalia Russo, Zorana Zekulic, Wanted by the FBI
Yuri Prerovsky — Federal Security Services (FSB), Russian Federation. Assistant to Alexei Kaparov
Anatoly Reznikov — Rogue Russian Scientist
Captain Maxim Sabitov — Russian Army reservist, leader of Monchegorsk uprising
Brigadier General Terrence Sanderson — U.S. Army retired, Black Flag program founder, Wanted by the FBI
Hans Schafer — Black Flagged Operative, European Group, Assigned to Monchegorsk and Stockholm operation
"Sergei" — Black Flag Operative, Russian Group, assigned to Petrovich's Kazakhstan team
Ryan Sharpe — FBI Special Agent, Domestic Terrorism Branch, Task Force Commander
Frederick Shelby — Director of the FBI
Gerald Simmons — Assistant Secretary for Special Operations and Low Intensity Conflict
Dmitry Solomin — Russian Foreign Intelligence Service (SVR), Stockholm
Captain Vasily Tischenko — Russian Air Force Special Operations helicopter pilot
Lieutenant Colonel Grigory Zadornov — Russian Federation Army, Battalion Commander