The Four Horsemen was a stable of wrestlers that originally included which Canadian-American?
The Four Horsemen (professional wrestling):  The original group consisted of Ric Flair, Arn Anderson, Ole Anderson, and Tully Blanchard. Tully Blanchard: Tully Arthur Blanchard (born January 22, 1954) is a Canadian-born American retired professional wrestler.
Tully Arthur Blanchard