Well, in 'The Dukes in Hollywood', Rosco did suggest that he should be played by Burt Reynolds in 'The J.D. Hogg Story' (with Boss suggesting Robert Redford for the lead). In real life, Burt Reynolds was a student at James Best's acting school, so he would've had a good teacher for the part .
Of course, M. C. Gainey appeared as Peters in 'Bad Day in Hazzard'. I think that makes him the only one of the main actors of the 2005 movie who was in the original series.