No kidding. While it is difficult not to think of him as Hud Bannon, Brick Pollitt, Butch Cassidy, Fast Eddie or the egg-eating, uncageable Luke, he did some unforgettable work later in his career, too; The Verdict, Nobody's Fool, Road to Perdition and even Cars.
My dad actually met him (and Joanne) once at The Met, managing to hold his attention for more than a minute by talking about racing instead of acting. My mom was stunned that my dad had managed to overturn the "guarded recluse" template.
God damn cancer.