I have to admit, not being a Macgyver fan, I never really even saw e show, but being a Simpsons fan, I felt I had to take a shot on this one. I had to cheat and use an internet seach just to see what this guy was in, and it was not much so I admit so cheating wass used here
Richard Dean Anderson/ Robert Townsend Odd Jobs
Robert Towensend/ Kevin Costner American Flyers (great movie)
Kevin Costner/ James Earl Jones Field of Dreams
James Earl Jones/ Harrison Ford Star Wars (the good ones)
ok this is a personal fav here, too easy once ou realize who he is
Richard Brooker