Al PacinoOfficer Frank Serpico John RandolphSidney Green Biff McGuireCaptain McClain Cornelia SharpeLeslie Lane Mildred ClintonMrs. Serpico F. Murray AbrahamDetective Partner (uncredited) P.J. BenjaminMan (uncredited) Don BillettDetective Threatening Serpico (uncredited) Val BisoglioWeapons Storage Officer (uncredited) John BrandonPolice Lieutenant (uncredited) James BulleitDet. Styles (uncredited) Roy CheverieCop (uncredited) Sam CoppolaCop (uncredited) Marjorie EliotRape Victim (uncredited) René EnríquezCervantes Teacher (uncredited) Conard FowkesCop - Narcotics Raid (uncredited) Frank GioPolice Lieutenant (uncredited) Trent GoughCop (uncredited) Paul E. GuskinPolice Academy Classmate (uncredited) Nick HardinTelevision Cameraman (uncredited) Judd HirschCop (uncredited) Richard KussDetective (uncredited) Tony Lo BiancoCop (uncredited) George LorosDet. Glover (uncredited) Kenneth McMillanCharlie (uncredited) Stephen PearlmanDesk Sergeant (uncredited) Tim PeltBlack Hood (uncredited) William PeltBlack Hood (uncredited) Jay RasumnyTelevision Cameraman (uncredited) Franklin ScottBlack Prisoner (uncredited) Tom SignorelliBookmaker (uncredited) Ben SlackDetective Sitting At Desk (uncredited) Jaime SánchezCop (uncredited) Tracey WalterStreet Urchin (uncredited) Mary Louise WellerSally - Girl at Party (uncredited) Dino De LaurentiisExecutive Producer Roger M. RothsteinAssociate Producer Douglas HigginsArt Direction Thomas H. WrightSet Decoration Charles BaileyProduction Design Arthur J. OrnitzDirector Of Photography Reginald TackleyMakeup Artist Anna Hill JohnstoneCostume Design B.J. BjorkmanScript Supervisor Burtt HarrisAssistant Director Alan HopkinsAssistant Director Jack FitzstephensSound Editor Richard P. CirincioneSound Editor Robert M. ReitanoSound Editor Míkis TheodorakisOriginal Music Composer 
