If we are talking about bad casting decisions based on lack of emotional accuracy to the character in the book (which I don't think matters as much) then definitely Jack Nicholson in The Shinning would fit that to a tee.
If we are talking about bad casting decisions based on lack of emotional accuracy to the character in the book (which I don't think matters as much) then definitely Jack Nicholson in The Shinning would fit that to a tee.