Colin Farrell – Alexander (2004)

In Alexander, Farrell plays the Macedonian king himself, Alexander the Great, in what has surely gone down in history as one of the strangest casting choices of all time. The Irish bad boy has a thick brogue in the film that he just couldn’t seem to shake when the cameras began rolling, resulting in a strange blurring of accents. For his role, Farrell would earn a worst actor Razzie nomination.