Srecko Hadzic — Leader of the "Panthers," a quasi-organized crime network and Serbian ultra-nationalist paramilitary group serving Slobodan Milosevic's regime.
Pavle Hadzic — Hadzic's handicapped brother.
Radovan Grahovac — Hadzic's "right-hand" man and chief-of-security.
Marko Resja (aka Daniel Petrovich) — Midlevel soldier and undercover U.S. operative.
Mirko Jovic — Leader of "White Eagles," a rival paramilitary group.
Goran Lujic — "White Eagles" enforcer.
Director — Benjamin Shelby
Executive Assistant Director, Fred Carroll — National Security Branch
Associate Director, Sandra Delgado — National Security Branch
Special Agent-in-Charge Ryan Sharpe — Task Force HYRDA's investigative leader.
Special Agent Frank Mendoza — Sharpe's second-in-command.
Special Agent Heather Olson — Primary investigator, HYDRA murders.
Special Agent Dana O'Reilly — Lead data analyst, HYDRA.
Special Agent Justin Edwards — Lead investigator for Mohammed Ghani murder scene.
Special Agent Keith Weber — Communications section-head, HYDRA.
Special Agent Gregory Carlisle — Lead Interrogator, HYDRA murders.
Audra Bauer — Director, Counter-Terrorism Center, National Clandestine Service.
Karl Berg — Assistant Director, Counter-Terrorism Center, National Clandestine Service.
Randy Keller — CIA Liaison to Task Force HYDRA
Daniel Petrovich — Former Black Flag Operative
General Terrence Sanderson — Created original Black Flag program.
James Parker — Sanderson's "right-hand" man
Colonel Richard Farrington — Compartmentalized Information Section (CIS), Pentagon.
Jeffrey Munoz — Suspect in the shooting of Umar Salah.
Jessica Petrovich — Daniel Petrovich's wife.
Julio Mendez — Janitorial Custodian, Pentagon.
Darryl Jackson — Executive, Brown River Security Corporation.
Jeremy Cummings — Team leader, Brown River Security Corporation.
Derren McKie — National Security Agency employee and former Black Flag operative