| Name (Sort) | Character (Sort) | |
| •Daniel J. Travanti | played | Capt. Frank Furillo (146Eps.) |
| •Michael Conrad | played | Sgt. Phil Esterhaus (S01-S03) (57Eps.) |
| •Michael Warren | played | Officer Bobby Hill (146Eps.) |
| •Bruce Weitz | played | Det. Mick Belker (145Eps.) |
| •James Sikking | played | Lt. Howard Hunter (145Eps.) |
| •Joe Spano | played | Sgt./Lt. Henry Goldblume (146Eps.) |
| •Barbara Bosson | played | Fay Furillo (S01-S06) (123Eps.) |
| •Taurean Blacque | played | Det. Neal Washington (146Eps.) |
| •Kiel Martin | played | Det. Johnny "J. D." LaRue (146Eps.) |
| •René Enríquez | played | Lt. Ray Calletano (146Eps.) |
| •Betty Thomas | played | Officer/Sgt. Lucille Bates (146Eps.) |
| •Veronica Hamel | played | Joyce Davenport (146Eps.) |
| •Charles Haid | played | Officer Andy Renko (146Eps.) |
| •Ed Marinaro | played | Officer Joe Coffey (S02-S06) (107Eps.) |
| •Dennis Franz | played | Lt. Norman Buntz (S06-S07) (44Eps.) |
| •Ken Olin | played | Det. Harry Girabaldi (S05) (23Eps.) |
| •Mimi Kuzyk | played | Patsy Mayo (S05-S07; recurring previously) (67Eps.) |
| •Robert Hirschfeld | played | Officer Leo Schnitz (S05-S07; recurring previously) (67Eps.) |
| •Robert Prosky | played | Sgt. Stanislaus Jablonski (S05-S07) (67Eps.) |