Glengarry Glen Ross. He's a total douche, but that's a good movie.
I had to reach for some Pepto when he played Doolittle but gotta admit that GGR was excellent.
Another DB to me is Travolta. Seeing him with that moustache as a general in thin Red line made my skin crawl. Liked it so much better when Bruce Willis filled him full of holes in Pupl Fiction.