Roy Richard Scheider was an American actor and amateur boxer. Scheider gained fame for his leading and supporting roles in several iconic films from the 1970s, playing NYPD Detective Buddy "Cloudy" Russo in The French Connection; NYPD Detective Buddy Manucci in The Seven Ups; Police Chief Martin Brody in Jaws and Jaws 2; Doc in Marathon Man; choreographer and film director Joe Gideon in All That Jazz; and Dr. Heywood R. Floyd in the 1984 film 2010, the sequel to 2001: A Space Odyssey.