Seith MannDirector
Dominic WestDet. James "Jimmy" McNulty
John DomanWilliam A. Rawls
Frankie FaisonComm. Ervin H. Burrell
Wood HarrisAvon Barksdale
Domenick LombardozziDet. Thomas "Herc" Hauk
Deirdre LovejoyRhonda Pearlman
Wendell PierceDet. William "Bunk" Moreland
Lance ReddickLt. Cedric Daniels
Andre RoyoBubbles
Sonja SohnDet. Shakima "Kima" Greggs
J.D. WilliamsPreston "Bodie" Broadus
Seth GilliamSgt. Ellis Carver
Clarke PetersDet. Lester Freamon
Jim True-FrostDet. Roland "Prezbo" Pryzbylewski
Michael WilliamsOmar Little
Corey RobinsonDet. Leander Sydnor
Robert WisdomHoward "Bunny" Colvin
Aidan GillenThomas "Tommy" Carcetti
Jamie HectorMarlo Stanfield
Chad ColemanDennis "Cutty" Wise
Isiah Whitlock Jr.State Sen. R. Clayton "Clay" Davis
Glynn TurmanMayor Clarence V. Royce
Reg CatheyNorman Wilson
Amy RyanOff. Beatrice "Beadie" Russell
Jermaine CrawfordDuquan "Dukie" Weems
Maestro HarrellRandy Wagstaff
Julito McCullumNamond Brice
Tristan WildsMichael Lee
Gbenga AkinnagbeChris Partlow
Robert ChewJoseph "Proposition Joe" Stewart
Anwan GloverSlim Charles
Melvin WilliamsDeacon
Tootsie DuvallAssistant Principal Marcia Donnelly
Dravon JamesGrace Sampson
Dan DeLucaDavid Parenti
Boris McGiverLt. Charles Marimow
Gene TerinoniLt. Jimmy Asher
Daniel Robertson IIIShaun Williams
Maria BroomMarla Daniels
Brandy BurreTheresa D'Agostino
Cleo PizanaChief of Staff Coleman Parker
Frederick StrotherState Delegate Odell Watkins
Ramon RodriguezRenaldo