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