Jimmy Popeye Doyle is based on real life NYPD Detective Eddie Popeye Egan , and who with his partner NYPD Detective Sonny Grosso (upon whom Det. Buddy Russo is based) was one of the key NYPD Task Force members who broke the real French Connection case.Eddie Egan appears in the film in a cameo as Doyle and Russo's supervisor Simonson, and Sonny Grosso appears in the film in a cameo as another of Doyle and Russo's supervisors, Klein. Show less «