You forgot my personal favorite, Joanna Moore (Tatum O'Neal's mum). Only one scene and uncredited but but when think of NS, she's the first one that comes to mind.
I appreciate your honest assessment of Nevada Smith, Mr. Harris. While I don't think it's as bad as you do (and yes, I will buy it), but I agree. It's just not a very good movie. I actually prefer the film of The Carpetbaggers! Yes, it is trash but in its own lurid and trashy way, it's so much...