| Actor | Richard Belzer (as John Munch), Yaphet Kotto (as Al Giardello), Andre Braugher (as Frank Pembleton), Jon Polito (as Steve Crosetti), Kyle Secor (as Tim Bayliss), Ned Beatty (as Stanley Bolander), Reed Diamond (as Mike Kellerman), Max Perlich (as J. H. Brodie), Peter Gerety (as Stuart Gharty), Jon Seda (as Paul Falsone), Giancarlo Esposito (as Michael Giardello), Željko Ivanek (as Ed Danvers), Daniel Baldwin (as Beau Felton), Jack Larravide (as Funeral attendant) |
| Actress | Melissa Leo (as Kay Howard), Isabella Hofmann (as Megan Russert), Michelle Forbes (as Julianna Cox), Callie Thorne (as Laura Ballard), Toni Lewis (as Terri Stivers), Michael Michele (as Rene Sheppard) |
| Broadcaster | National Broadcasting Company (NBC) |
| Creator | Paul Attanasio |
| Production Company | Baltimore Pictures |
| Production Company (Seasons 3–4) | NBC Productions |
| Production Company (Season 1) | Reeves Entertainment Group |
| Production Company (Seasons 2–7) | MCEG Sterling Incorporated |
| Production Company (Seasons 5–7) | NBC Studios |
| Links | IMDB |
