Also Known As:
.
- Serpiko
- Sidney Lumet
- Peter Maas
- Waldo Salt
- Norman Wexler
- Al Pacino ... Officer Frank Serpico
- John Randolph ... Chief Sidney Green
- Jack Kehoe ... Tom Keough
- Biff McGuire ... Capt. Insp. McClain
- Barbara Eda-Young ... Laurie
- Cornelia Sharpe ... Leslie Lane
- Tony Roberts ... Bob Blair
- John Medici ... Pasquale
- Allan Rich ... Dist. Atty. Herman Tauber
- Norman Ornellas ... Don Rubello
- Edward Grover ... Insp. Lombardo (as Ed Grover)
- Albert Henderson ... Peluce (as Al Henderson)
- Hank Garrett ... Malone
- Damien Leake ... Joey
- Joseph Bova ... Potts (as Joe Bova)
- Gene Gross ... Capt. Tolkin
- John Stewart ... Waterman
- Woodie King Jr. ... Larry (as Woodie King)
- James Tolkan ... Lt. Steiger (as James Tolkin)
- Ed Crowley ... Barto
- Bernard Barrow ... Insp. Roy Palmer
- Sal Carollo ... Mr. Serpico
- Mildred Clinton ... Mrs. Serpico
- Nathan George ... Lt. Nate Smith
- Gus Fleming ... Dr. Metz
- Richard Foronjy ... Rudy Corsaro
- Alan North ... Brown
- Lewis J. Stadlen ... Jerry Berman
- John McQuade ... Insp. Kellogg
- Ted Beniades ... Al Sarno
- John Lehne ... Insp. Gilbert
- M. Emmet Walsh ... Chief Gallagher
- George Ede ... Deputy Chief Insp. Daley
- Charles White ... Commissioner Delaney
- F. Murray Abraham ... Detective Partner
- Don Billett ... Detective Threatening Serpico
- Raleigh Bond ...
- John Brandon ... Police Lieutenant
- James Bulleit ... Det. Styles
- Roy Cheverie ... Cop
- Sam Coppola ... Cop
- Marjorie Eliot ... Rape Victim
- René Enríquez ... Cervantes Teacher
- Conard Fowkes ... Cop - Narcotics Raid
- Frank Gio ... Police Lieutenant
- Trent Gough ... Cop
- Paul E. Guskin ... Police Academy Classmate
- Judd Hirsch ... Cop
- Bianca Hunter ...
- Richard Kuss ... Detective
- Tony Lo Bianco ... Cop
- George Loros ... Det. Glover
- Kenneth McMillan ... Charlie
- Stephen Pearlman ... Desk Sergeant
- Tim Pelt ... Black Hood
- William Pelt ... Black Hood
- Jay Rasumny ... Television Cameraman
- Jaime Sánchez ... Cop
- Franklin Scott ... Black Prisoner
- Tom Signorelli ... Bookmaker
- Ben Slack ... Detective Sitting at Desk
- Tracey Walter ... Street Urchin
- Mary Louise Weller ... Sally - Girl at Party
.