| Richard Belzer | John Munch |
| Andre Braugher | Frank Pembleton |
| Reed Diamond | Mike Kellerman |
| Michelle Forbes | Dr. Julianna Cox |
| Clark Johnson | Meldrick Lewis |
| Yaphet Kotto | Al Giardello |
| Melissa Leo | Kay Howard |
| Max Perlich | J.H. Brodie
(credit only) |
| Kyle Secor | Tim Bayliss |
| Rosanna Arquette | Caroline Widmer |
| Polly Holliday | Mrs. Rath
(as Polly Holiday) |
| Chris Eigeman | Jude Silvio |
| Tom Quinn | Tom Rath |
| Sekou Laidlow | Tom Scritz |
| Jim Scopelitis | Dr. Siegel
(as Jim Scopeletis) |
| Tony Tsendeas | Gary Swirn |
| Robert Wagonhurst | William Webster |
| Jeffrey C. Westby | Officer Schenker |
| David Lamont Wilson | Edgar Gatlin |
| Nancy Morgan | Ms. Swirn
(uncredited) |