Many of his fellow officers considered him the most dangerous man alive - an honest cop.
New York cop Frank Serpico blows the whistle on the rampant corruption in the force only to have his comrades turn against him.
Steiger
Officer Frank Serpico
Detective Partner (uncredited)
Cop (uncredited)
Gallagher
Sidney Green
Street Urchin (uncredited)
Malone
Doctor
D. A. Tauber
Bob Blair
Charlie (uncredited)
Brown
Weapons Storage Officer (uncredited)
Det. Glover (uncredited)
Detective Sitting At Desk (uncredited)
Tom Keough
Desk Sergeant (uncredited)