| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Agnieszka Holland | Crew | Directing | Director | 3 |
 Alex Zakrzewski | Crew | Directing | Director | 2 |
 Alexa L. Fogel | Crew | Production | Casting | 8 |
 Alonzo Wilson | Crew | Costume & Make-Up | Costume Design | 9 |
 Anthony Hemingway | Crew | Directing | Director | 2 |
Blake Leyh | Crew | Sound | Music Supervisor, Sound Designer | 60 |
 Brad Anderson | Crew | Directing | Director | 2 |
 Clark Johnson | Crew | Directing | Director | 4 |
 Clement Virgo | Crew | Directing | Director | 2 |
Daniel Attias | Crew | Directing | Director | 4 |
David Mills | Crew | Writing | Writer | 2 |
David Platt | Crew | Directing | Director | 1 |
 David Simon | Crew | Production | Executive Producer, Story, Writer, Creator | 60 |
 Dominic West | Crew | Directing | Director | 1 |
 Ed Bianchi | Crew | Directing | Director | 5 |
 Ed Burns | Crew | Production | Producer, Writer, Story | 47 |
 Elodie Keene | Crew | Directing | Director | 2 |
 Eric Overmyer | Crew | Production | Producer, Writer | 47 |
 Ernest R. Dickerson | Crew | Directing | Director | 6 |
 Francine Jamison-Tanchuck | Crew | Costume & Make-Up | Costume Design | 1 |
 George Pelecanos | Crew | Production | Producer, Writer | 47 |
Geraldine Peroni | Crew | Editing | Editor | 16 |
 Gloria Muzio | Crew | Directing | Director | 1 |
Halina Gebarowicz | Crew | Art | Art Direction | 7 |
 Jim McKay | Crew | Directing | Director | 1 |
Joe Chappelle | Crew | Production | Co-Executive Producer, Producer, Director | 35 |
Joy Lusco | Crew | Writing | Writer | 3 |
Karen L. Thorson | Crew | Production | Co-Producer | 8 |
Kate Sanford | Crew | Editing | Editor | 3 |
Leslie Libman | Crew | Directing | Director | 1 |
 Milcho Manchevski | Crew | Directing | Director | 1 |
 Peter Medak | Crew | Directing | Director | 2 |
Rafael Alvarez | Crew | Writing | Writer | 3 |
 Richard Price | Crew | Writing | Writer | 5 |
Rob Bailey | Crew | Directing | Director | 2 |
 Robert F. Colesberry | Crew | Directing | Director, Executive Producer | 1 |
 Seith Mann | Crew | Directing | Director | 2 |
 Steve Shill | Crew | Directing | Director | 5 |
 Thom Zimny | Crew | Editing | Editor | 3 |
Thomas J. Wright | Crew | Directing | Director | 1 |
 Tim Van Patten | Crew | Directing | Director | 3 |
 Uta Briesewitz | Crew | Camera | Director of Photography | 10 |
Vincent Peranio | Crew | Production | Production Designer | 52 |
William A. Cimino | Crew | Art | Set Decoration | 9 |
 Christine Moore | Crew | Directing | Director | 2 |
 Dennis Lehane | Crew | Writing | Writer | 3 |
Kia Corthron | Crew | Writing | Writer | 1 |
 William F. Zorzi | Crew | Writing | Writer | 2 |
Chris Collins | Crew | Writing | Writer, Story | 1 |
Nina K. Noble | Crew | Production | Executive Producer, Producer, Co-Executive Producer | 35 |
Joy Kecken | Crew | Directing | Director | 1 |
Scott Kecken | Crew | Directing | Director | 1 |
Kurt Parlow | Crew | Camera | Camera Loader, Loader, Second Assistant Camera | 2 |
 Aidan Gillen | Cast | Actor | Tommy Carcetti | 35 |
 Alexandra Tydings | Cast | Actress | 1 | |
 Amy Ryan | Cast | Actress | Beatrice "Beadie" Russell | 12 |
 Andre Royo | Cast | Actor | Bubbles | 60 |
 Andrea Roth | Cast | Actress | 1 | |
 Antonio D. Charity | Cast | Actor | CO Dwight Tilghman | 1 |
 Bill Raymond | Cast | Actor | The Greek | 8 |
 Boris McGiver | Cast | Actor | Lt. Charles Marimow | 6 |
 Brian Anthony Wilson | Cast | Actor | Det. Vernon Holley | 1 |
Brook Yeaton | Cast | Actor | Michael 'White Mike' McArdle | 1 |
 Bruce Kirkpatrick | Cast | Actor | Roger Twigg | 4 |
 Callie Thorne | Cast | Actress | Elena McNulty | 12 |
 Chad L. Coleman | Cast | Actor | Dennis "Cutty" Wise | 13 |
 Charley Scalies | Cast | Actor | Thomas 'Horseface' Pakusa | 11 |
 Chris Ashworth | Cast | Sergei 'Serge' Malatov | 11 | |
 Chris Bauer | Cast | Actor | Frank Sobotka | 12 |
 Clarence Clemons | Cast | Actor | Roman | 2 |
Clark Johnson | Cast | Actor | Augustus Haynes | 10 |
 Clarke Peters | Cast | Actor | Detective Lester Freamon | 12 |
Clayton LeBouef | Cast | Actor | Wendell 'Orlando' Blocker | 7 |
 Corey Parker Robinson | Cast | Actor | Detective Leander Sydnor | 10 |
 Cyrus Farmer | Cast | Actor | 3 | |
 Deirdre Lovejoy | Cast | Actress | Rhonda Pearlman | 60 |
 Delaney Williams | Cast | Actor | Sergeant Jay Landsman | 6 |
 Domenick Lombardozzi | Cast | Actor | Detective Thomas 'Herc' Hauk | 22 |
Dominic West | Cast | Actor | Jimmy McNulty | 60 |
 Donnell Rawlings | Cast | Actor | Damien 'Day-Day' Price | 4 |
Elisabeth Noone | Cast | Joan Sobotka | 2 | |
 Frankie Faison | Cast | Actor | Ervin Burrell | 50 |
 Fredro Starr | Cast | Actor | Marquis 'Bird' Hilton | 2 |
 Glynn Turman | Cast | Actor | Mayor Clarence V. Royce | 3 |
 Hassan Johnson | Cast | Actor | Roland 'Wee-Bey' Brice | 14 |
 Idris Elba | Cast | Actor | Stringer Bell | 37 |
 Isiah Whitlock Jr. | Cast | Actor | Clay Davis | 10 |
 J.D. Williams | Cast | Actor | Preston 'Bodie' Broadus | 17 |
 James Ransone | Cast | Actor | Chester 'Ziggy' Sobotka | 12 |
 Jamie Hector | Cast | Actor | Marlo Stanfield | 27 |
 Jarvis W. George | Cast | Actor | 'Ronnie Mo' Watkins | 1 |
 Jeffrey Pratt Gordon | Cast | Actor | John 'Johnny Fifty' Spamanto | 2 |
 Jim True-Frost | Cast | Actor | Detective Roland 'Prez' Pryzbylewski | 21 |
 John Doman | Cast | Actor | William Rawls | 60 |
Joilet Harris | Cast | Actress | Off. Caroline Massey | 2 |
 Keith Flippen | Cast | Actor | Bruce DiBiago | 2 |
Keith Johnson | Cast | Actor | Desk Sergeant (uncredited) | 1 |
 Lance Reddick | Cast | Actor | Cedric Daniels | 60 |
 Lawrence Gilliard Jr. | Cast | Actor | D'Angelo Barksdale | 25 |
 Leo Fitzpatrick | Cast | Actor | Johnny Weeks | 14 |
 Maestro Harrell | Cast | Actor | Randy Wagstaff | 13 |
 Maria Broom | Cast | Actress | Marla Danyels | 1 |
 Marlyne Barrett | Cast | Actress | Council President Nerese Campbell | 11 |
 Marty Lodge | Cast | 2 | ||
 Melanie Nicholls-King | Cast | Actress | Cheryl | 15 |
 Merritt Wever | Cast | Actress | Prissy | 1 |
 Method Man | Cast | Actor | Melvin 'Cheese' Wagstaff | 11 |
 Michael B. Jordan | Cast | Actor | Wallace | 12 |
 Michael Hyatt | Cast | Actress | Brianna Barksdale | 12 |
 Michael Kenneth Williams | Cast | Actor | Omar Little | 50 |
 Michael Kostroff | Cast | Actor | Maurice 'Maury' Levy | 24 |
 Michael Potts | Cast | Actor | Brother Mouzone | 4 |
Nat Benchley | Cast | Actor | Det. Augustus Polk | 5 |
 Neal Huff | Cast | Actor | Michael Steintorf | 10 |
 Neko Parham | Cast | Actor | State Police Undercover Troy Wiggins | 1 |
 Pablo Schreiber | Cast | Actor | Nick Sobotka | 13 |
 Paul Ben-Victor | Cast | Actor | Spiros "Vondas" Vondopoulos | 12 |
 Peter Gerety | Cast | Actor | Judge Daniel Phelan | 9 |
 Reg E. Cathey | Cast | Actor | Norman Wilson | 23 |
 Richard Belzer | Cast | Actor | John Munch | 1 |
 Richard DeAngelis | Cast | Actor | Col. Raymond Foerster | 3 |
 Rick Otto | Cast | Actor | Off. Kenneth Dozerman | 11 |
Robert F. Colesberry | Cast | Actor | Det. Ray Cole (uncredited) | 1 |
 Robert Hogan | Cast | Actor | Louis Sobotka | 4 |
 Robert Wisdom | Cast | Actor | Howard "Bunny" Colvin | 25 |
 Roscoe Orman | Cast | Actor | Off. Oscar Requer | 2 |
 Sam Coppola | Cast | Actor | Former Mayor 'Young Tony' | 1 |
 Sam Freed | Cast | Actor | Executive Editor James C. Whiting III | 7 |
 Seth Gilliam | Cast | Actor | Sergeant Ellis Carver | 9 |
 Sonja Sohn | Cast | Actress | Kima Greggs | 60 |
 Steve Earle | Cast | Actor | Walon | 2 |
 Tom Mardirosian | Cast | Actor | Agent Kristos Koutris | 3 |
 Tom McCarthy | Cast | Actor | Scott Templeton | 10 |
Tom Quinn | Cast | Actor | Det. Patrick Mahon | 3 |
 Wendell Pierce | Cast | Actor | Bunk Moreland | 60 |
Wes Johnson | Cast | Actor | Security Supervisor (uncredited) | 1 |
 Wood Harris | Cast | Actor | Avon Barksdale | 37 |
 Anwan Glover | Cast | Actor | Slim Charles | 5 |
 Benjamin Busch | Cast | Actor | Off. Anthony Colicchio | 13 |
 Brandon Fobbs | Cast | Actor | Fruit | 5 |
 Brandy Burre | Cast | Actress | Theresa D'Agostino | 12 |
 Chris Clanton | Cast | Actor | Savino Bratton | 3 |
 Daniel Lee Robertson III | Cast | Actor | Shaun Williams | 2 |
 Edwina Findley | Cast | Actress | Tosha Mitchell | 2 |
 Ernest Waddell | Cast | Actor | Dante | 8 |
 Snoop | Cast | Actress | Felicia 'Snoop' Pearson | 17 |
 Gbenga Akinnagbe | Cast | Actor | Chris Partlow | 10 |
 James Lewis | Cast | Actor | Marvin (uncredited) | 3 |
 Jay Landsman | Cast | Lt. Dennis Mello | 5 | |
Kahil Dotay | Cast | 3 | ||
 Ken Arnold | Cast | Actor | Car Theft Reporting Lt. (uncredited) | 1 |
 Lev Gorn | Cast | Actor | Eton Ben-Eleazer | 5 |
 Lucy Newman-Williams | Cast | Actress | Asst. State's Atty. Taryn Hanson | 1 |
 Michael Stone Forrest | Cast | Actor | Det. Frank Barlow | 1 |
 Mike D. Anderson | Cast | Actor | Ghost (uncredited) | 6 |
 Ramón Rodríguez | Cast | Actor | Renaldo | 8 |
 Robert F. Chew | Cast | Actor | Joseph 'Proposition Joe' Stewart | 9 |
Robert Neal Marshall | Cast | Actor | Comstat Police Major (uncredited) | 2 |
 Robert X. Golphin | Cast | Actor | Crackhead (uncredited) | 1 |
 Teddy Cañez | Cast | Actor | George 'Double G' Glekas | 5 |
 Tray Chaney | Cast | Actor | Malik 'Poot' Carr | 18 |
 Tristan Mack Wilds | Cast | Actor | Michael Lee | 14 |
Christine Lee | Cast | 1 | ||
 Jermaine Crawford | Cast | Actor | Duquan "Dukie" Weems | 10 |
 Michelle Paress | Cast | Actress | Alma Gutierrez | 10 |
Lance Irwin | Cast | Actor | Maui | 5 |
 S. Robert Morgan | Cast | Actor | Butchie | 3 |
 Gordana Rashovich | Cast | Actress | Ilona Petrovich (uncredited) | 1 |
 Erik Dellums | Cast | Actor | Dr. Randall Frazier | 5 |
Brandon Price | Cast | Actor | Anton 'Stinkum' Artis | 7 |
 Reggie Alvin Green | Cast | Actor | Arabber (als Reggie A. Green) | 3 |
 Luray Cooper | Cast | Actor | Nathaniel 'Nat' Coxson | 9 |
 Kevin Murray | Cast | Actor | Special Agent Kleary (uncredited) | 1 |
 Tony D. Head | Cast | Actor | Maj. Bobby Reed | 4 |
 Poe | Cast | Actress | Performer/Vocalist | 1 |
 Al Brown | Cast | Actor | Maj. Stanislaus Valchek | 13 |
 Kristin Proctor | Cast | Actress | Aimee | 6 |
 Doug Olear | Cast | Actor | FBI Spec. Agent Terrance 'Fitz' Fitzhugh | 7 |
Taylor King | Cast | Actress | Zenobia Dawson | 1 |
 Michael Salconi | Cast | Actor | Off. Michael 'Sanny' Santangelo | 3 |
Dave Trovato | Cast | Actor | Lt. Walter Cantrell | 1 |
Micaiah Jones | Cast | Wintell 'Little Man' Royce | 2 | |
Larry Hull | Cast | William Gant | 1 | |
Gil Deeble | Cast | Actor | Hucklebuck | 1 |
Michael Kevin Darnall | Cast | Brandon Wright | 1 | |
Antonio Cordova | Cast | Michael McNulty | 1 | |
 Edward T. Norris | Cast | Actor | Det. Edward Norris | 1 |
Eric G. Ryan | Cast | Sean McNulty | 1 | |
| Person | Type | Job | Role(s) | Episodes |
