| Actor | Character | Seasons |
| George Dzundza | |
| Chris Noth | |
| Dann Florek | |
| Michael Moriarty | |
| Richard Brooks | |
| Steven Hill | |
| Paul Sorvino | |
| Jerry Orbach | |
| S. Epatha Merkerson | |
| Jill Hennessy | |
| Sam Waterston | |
| Benjamin Bratt | |
| Carey Lowell | |
| | Actor | Character | Seasons |
| Angie Harmon | |
| Jesse L. Martin | |
| Dianne Wiest | |
| Elisabeth Rohm | |
| Fred Dalton Thompson | |
| Dennis Farina | |
| Michael Imperioli | |
| Annie Parisse | |
| Milena Govich | |
| Alana de la Garza | |
| Jeremy Sisto | |
| Linus Roache | |
| Anthony Anderson | |
|