Well, Dar was also in Sharkey's Machine
( http://www.imdb.com/title/tt0083064/trivia ), and I would
have sworn that the character he played was Moke. (At least he was Moke in spirit, anyhow). :)
He performed stunts in Sharkey's Machine but did not act.
http://www.imdb.com/name/nm0732512/