Dominic West Det. James "Jimmy" McNulty Actor John Doman William A. Rawls Actor Frankie Faison Comm. Ervin H. Burrell Actor Wood Harris Avon Barksdale Actor Domenick Lombardozzi Det. Thomas "Herc" Hauk Actor Deirdre Lovejoy Rhonda Pearlman Actor Wendell Pierce Det. William "Bunk" Moreland Actor Lance Reddick Lt. Cedric Daniels Actor Andre Royo Bubbles Actor Sonja Sohn Det. Shakima "Kima" Greggs Actor J.D. Williams Preston "Bodie" Broadus Actor Seth Gilliam Sgt. Ellis Carver Actor Clarke Peters Det. Lester Freamon Actor Jim True-Frost Det. Roland "Prezbo" Pryzbylewski Actor Michael Kenneth Williams Omar Little Actor Corey Parker Robinson Det. Leander Sydnor Actor Robert Wisdom Howard "Bunny" Colvin Actor Aidan Gillen Thomas "Tommy" Carcetti Actor Jamie Hector Marlo Stanfield Actor Chad L. Coleman Dennis "Cutty" Wise Actor Isiah Whitlock Jr. State Sen. R. Clayton "Clay" Davis Actor Glynn Turman Mayor Clarence V. Royce Actor Reg E. Cathey Norman Wilson Guest Star Jermaine Crawford Duquan "Dukie" Weems Guest Star Maestro Harrell Randy Wagstaff Guest Star Julito McCullum Namond Brice Guest Star Mack Wilds Michael Lee Guest Star Gbenga Akinnagbe Chris Partlow Guest Star Robert F. Chew Joseph "Proposition Joe" Stewart Guest Star Tray Chaney Malik "Poot" Carr Guest Star Melanie Nicholls-King Cheryl Guest Star Delaney Williams Sgt. Jay Landsman Guest Star Anwan Glover Slim Charles Guest Star Ramón Rodríguez Renaldo Guest Star Stacie Davis Ms. Duquette Guest Star Dan DeLuca David Parenti Guest Star Susan Duvall Assistant Principal Marcia Donnelly Guest Star Richard Hidlebird Principal Claudell Withers Guest Star Marlyne Barrett Council President Nerese Campbell Guest Star Cyrus Farmer Devar Manigault Guest Star Dion Graham State's Attorney Rupert Bond Guest Star Frederick Strother State Delegate Odell Watkins Guest Star Keenon Brice Aaron "Bug" Manigault Guest Star Nathan Corbett Donut Guest Star Dravon James Grace Sampson Guest Star Felicia Pearson Felicia "Snoop" Pearson Guest Star Benjamin Busch Off. Anthony Colicchio Guest Star Rick Otto Off. Kenneth Dozerman Guest Star Bobby J. Brown Off. Bobby Brown Guest Star Alex Zakrzewski Director Ed Burns Writer Kia Corthron Writer