My own contribution - I don't think John Wayne ever played a villain in his hundreds of roles did he? Maybe when he was a stuntman/extra, but never as the lead.
Doesn't he kind of go "racist psychopath" in
The Searchers?
Yeah... In the end though, he does the right thing and doesn't actually murder anyone (despite attempting to at one point) to my recollection. Haven't seen it in ages though.