Serpico
Sidney Green
Tom Keough
Captain McClain
Laurie (as Barbara eda-Young)
Leslie
Bob Blair
Pasquale
D.A. Tauber
Rubello
Lombardo (as Ed Grover)
Peluce (as Al Henderson)
Malone
Joey
Potts (as Joe Bova)
Captain Tolkin
Waterman
Larry (as Woodie King)
Steiger (as James Tolkin)
Barto
Palmer
Mr. Serpico
Mrs. Serpico
Smith
Dr. Metz
Corsaro
Brown
Berman
Kellogg
Al Sarno
Gilbert
Gallagher
Daley
Delaney
Detective Partner (uncredited)
Man (uncredited)
Detective Threatening Serpico (uncredited)
Weapons Storage Officer (uncredited)
(uncredited)
Principal (uncredited)
Police Lieutenant (uncredited)
Det. Styles (uncredited)
Cop (uncredited)
Rape Victim (uncredited)
Cervantes Teacher (uncredited)
Cop - Narcotics Raid (uncredited)
Police Academy Classmate (uncredited)
Television Cameraman (uncredited)
Detective (uncredited)
Bar Patron (uncredited)
Det. Glover (uncredited)
Charlie (uncredited)
Doctor (uncredited)
Desk Sergeant (uncredited)
Black Hood (uncredited)
Black Prisoner (uncredited)
Hippy (uncredited)
Bookmaker (uncredited)
Detective Sitting at Desk (uncredited)
Gambling Ring Hood (uncredited)
Street Urchin (uncredited)
Police Sergeant (uncredited)
Sally - Girl at Party (uncredited)