Roy Scheider first became known to me when I four years old.  As a child, watching him portray Chief Brody, he became a hero of mine.  I credit him, along with the movie "Jaws" with sparking my interest in sharks and the ocean.  Coincidentally enough, I just saw my first Great White shark a few months ago in California.  
For those of you who don't know, Scheider made one final film before his death.  He worked with some fellows who are Jaws-fanatics and he narrated a film called "The Shark is Still Working".  Its a documentary about the Jaws phenomenon.  Currently the film is finished and awaiting release.