Trailer
Images
 | Al Pacino as Officer Frank Serpico |
 | John Randolph as Sidney Green |
 | Jack Kehoe as Tom Keough |
 | Biff McGuire as Captain McClain |
 | Barbara Eda-Young as Laurie |
 | Cornelia Sharpe as Leslie Lane |
 | Tony Roberts as Bob Blair |
 | John Medici as Pasquale |
 | Allan Rich as D. A. Tauber |
| Norman Ornellas as Rubello |
 | Edward Grover as Lombardo |
 | Albert Henderson as Peluce |
 | Hank Garrett as Malone |
 | Damien Leake as Joey |
 | Joseph Bova as Potts |
 | Gene Gross as Captain Tolkin |
| John Stewart as Waterman |
 | Woodie King Jr. as Larry |
 | James Tolkan as Steiger |
| Ed Crowley as Barto |
 | Bernard Barrow as Palmer |
 | Sal Carollo as Mr. Serpico |
| Mildred Clinton as Mrs. Serpico |
 | Nathan George as Smith |
| Gus Fleming as Dr. Metz |
 | Richard Foronjy as Corsaro |
 | Alan North as Brown |
 | Lewis J. Stadlen as Berman |
| John McQuade as Kellogg |
 | Ted Beniades as Sarno |
 | John Lehne as Gilbert |
 | M. Emmet Walsh as Gallagher |
| George Ede as Daley |
 | Charles White as Delaney |
 | F. Murray Abraham as Detective Partner (uncredited) |
 | P.J. Benjamin as Man (uncredited) |
| Don Billett as Detective Threatening Serpico (uncredited) |
 | Val Bisoglio as Weapons Storage Officer (uncredited) |
 | John Brandon as Police Lieutenant (uncredited) |
| James Bulleit as Det. Styles (uncredited) |
| Roy Cheverie as Cop (uncredited) |
 | Sam Coppola as Cop (uncredited) |
| Marjorie Eliot as Rape Victim (uncredited) |
 | René Enríquez as Cervantes Teacher (uncredited) |
| Conard Fowkes as Cop - Narcotics Raid (uncredited) |
 | Frank Gio as Police Lieutenant (uncredited) |
 | Trent Gough as Cop (uncredited) |
| Paul E. Guskin as Police Academy Classmate (uncredited) |
 | Nick Hardin as Television Cameraman (uncredited) |
 | Judd Hirsch as Cop (uncredited) |
 | Richard Kuss as Detective (uncredited) |
 | Tony Lo Bianco as Cop (uncredited) |
 | George Loros as Det. Glover (uncredited) |
 | Kenneth McMillan as Charlie (uncredited) |
 | Stephen Pearlman as Desk Sergeant (uncredited) |
| Tim Pelt as Black Hood (uncredited) |
| William Pelt as Black Hood (uncredited) |
 | Jay Rasumny as Television Cameraman (uncredited) |
| Franklin Scott as Black Prisoner (uncredited) |
 | Tom Signorelli as Bookmaker (uncredited) |
 | Ben Slack as Detective Sitting At Desk (uncredited) |
 | Jaime Sánchez as Cop (uncredited) |
 | Tracey Walter as Street Urchin (uncredited) |
 | Mary Louise Weller as Sally - Girl at Party (uncredited) |
 | Judd Omen as Doctor |
| Writing | |
| Waldo Salt | Screenplay |
Production | |
| Martin Bregman | Producer |
Camera | |
| Arthur J. Ornitz | Director of Photography |
Editing | |
| Dede Allen | Editor |
Production | |
| Dino De Laurentiis | Executive Producer |
Directing | |
| Sidney Lumet | Director |
Writing | |
| Norman Wexler | Screenplay |
| Peter Maas | Book |
Sound | |
| Edward Beyer | Sound Editor |
| Jack Fitzstephens | Sound Editor |
Costume & Make-Up | |
| Reginald Tackley | Makeup Artist |
Sound | |
| Robert M. Reitano | Sound Editor |
| Richard P. Cirincione | Sound Editor |
Art | |
| Thomas H. Wright | Set Decoration |
Production | |
| Roger M. Rothstein | Associate Producer |
Editing | |
| Richard Marks | Co-Editor |
Directing | |
| B.J. Bjorkman | Script Supervisor |
Production | |
| Shirley Rich | Casting |
Art | |
| Charles Bailey | Production Design |
Costume & Make-Up | |
| Anna Hill Johnstone | Costume Design |
Art | |
| Douglas Higgins | Art Direction |
Production | |
| Dino De Laurentiis | Producer |
Crew | |
| Whitey Hughes | Stunts |
Directing | |
| Burtt Harris | Assistant Director |
| Alan Hopkins | Assistant Director |
Sound | |
| Míkis Theodorakis | Original Music Composer |
| Bob James | Music Arranger |
