I count Dennis Hopper’s appearances in at least two Western Classics: Gunfight at OK Corral with Burt Lancaster and Kirk Douglas (1957); and True Grit (1969) with John Wayne. Even if Western movie fans didn’t count these movies as Classic, it would be recognized that Hopper had appeared with three of the Greatest Western Movie Stars of all time: Wayne, Lancaster and Douglas.
Some Western fans may also include Hang ’em High (1968) with another of the Greatest Western Actors of all time: Clint Eastwood; and The Sons of Katie Elder (1965) with John Wayne (again), Dean Martin and Earl Holliman.
Among Western TV Shows. Gunsmokeand Bonanzawould well be considered Classics. Cheyenne ? (Note: Hoppers roles in the TV Westerns were as a Guest Star – not a regular.)
Even so, not a bad legacy for one the legendary bad boys of the Entertainment industry.