| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Ivan Dixon | Crew | Directing | Director | 1 |
 Sam Rolfe | Crew | Creator | Creator | |
William Sackheim | Crew | Production | Producer | 19 |
 Alan Haufrect | Cast | Actor | Holman | 1 |
 Alex Henteloff | Cast | Actor | Don Eveloff, Coroner | 1 |
 Allan Rich | Cast | Actor | Joe Ducks Ducotto | 1 |
 Andy Romano | Cast | Actor | Lenny Marshall | 1 |
 Arnold F. Turner | Cast | Actor | Cop | 1 |
 Barbara Bosson | Cast | Actress | Nancy Travis | 1 |
Barney McFadden | Cast | Actor | Patsy Coletta | 1 |
 Bruce Kirby | Cast | Actor | Moretti | 2 |
 Bruno Kirby | Cast | Actor | 1 | |
 Carl Weathers | Cast | Actor | Sgt. Bell | 1 |
 Carmen Argenziano | Cast | Actor | Arnie | 1 |
 Charles Haid | Cast | Actor | Sgt. Paul Shonski | 19 |
 Charles Napier | Cast | Actor | Alt | 1 |
 Charles Siebert | Cast | Actor | Halsten | 1 |
 Connie Sawyer | Cast | Actress | 1 | |
 Danny DeVito | Cast | Actor | Anthony 'Beanzie' Marott | 1 |
 David Wayne | Cast | Actor | Jack Henderson | 1 |
 Ed Harris | Cast | Actor | Davey Bresnihan | 1 |
 George Gaynes | Cast | Actor | Commissioner Schaub | 1 |
 George Wyner | Cast | Actor | Assistant District Attorney Dorfman (uncredited) | 1 |
 Jack Bannon | Cast | Actor | Boyle | 1 |
 James B. Sikking | Cast | Actor | Ned Wagner | 2 |
 James Sloyan | Cast | Actor | Hank Foster | 2 |
 James Wainwright | Cast | Actor | Captain McCardy | 1 |
 Jason Bernard | Cast | Actor | Sgt. Ogden | 1 |
 John Chappell | Cast | Actor | Captain Moran | 1 |
 John Hillerman | Cast | Actor | Dr. Augustus Hamilton | 1 |
 John Marley | Cast | Actor | Father Caperelli | 1 |
 John Milford | Cast | Actor | 1 | |
 Judd Hirsch | Cast | Actor | Sgt. Dominick Delvecchio | 19 |
 Kiel Martin | Cast | Actor | Billy Yates | 1 |
 Lew Palter | Cast | Actor | Clark | 8 |
 Marian Collier | Cast | Actress | Dorothy Polson | 1 |
 Mario Gallo | Cast | Actor | Tomaso Delvecchio | 19 |
 Mario Roccuzzo | Cast | Actor | Vanetto | 1 |
 Mark Harmon | Cast | Actor | Ronnie Striker | 1 |
 Michael Conrad | Cast | Actor | Lt. Macavan | 19 |
 Michael Tucci | Cast | Actor | George Sanfillipo | 1 |
 Michael Witney | Cast | Actor | 1 | |
 Milt Kogan | Cast | Actor | Assistant D.A. Mitchell | 1 |
 Natasha Ryan | Cast | Actress | Gina as a Child | 1 |
 Ned Beatty | Cast | Actor | Wakefield | 1 |
 Pat Corley | Cast | Actor | Manny | 1 |
 Penny Santon | Cast | Actress | Mrs. Coletta | 1 |
 Philip Abbott | Cast | Actor | Polson | 1 |
 Philip Bruns | Cast | Actor | Ben | 1 |
 Raymond Singer | Cast | Actor | Harvey | 1 |
 Reni Santoni | Cast | Actor | George Coletta | 1 |
 Richard Bright | Cast | Actor | 1 | |
 Roger E. Mosley | Cast | Actor | Bosworth Hawkins | 1 |
 Sid Haig | Cast | Actor | George Borshak | 1 |
 Wynn Irwin | Cast | Actor | Pawnshop Owner | 1 |
 Dori Brenner | Cast | Actress | Jean Lazarus | 1 |
 Pervis Atkins | Cast | Actor | Robbie | 1 |
 Joseph R. Sicari | Cast | Actor | Wally the Pimp | 1 |
Jay Varela | Cast | Actor | Sergeant Rivera | 1 |
 Bob Harks | Cast | Actor | Prisoner (uncredited) | 1 |
Vern Rowe | Cast | Actor | Grease Monkey | 1 |
| Person | Type | Job | Role(s) | Episodes |
