Fan Casting American Doctor Who - The Tenth Doctor (2006-2010)

After only one season, Aaron Eckhart ultimately decided to leave the role after getting a major role in the Brian De Palma film, The Black Dahlia, and thought that would broaden his career more. With this, hunting high and low, Sam Rockwell was eventually chosen as the Tenth Doctor to replace Eckhart, as he was a huge fan of the series when he was growing up. With this, Sam Rockwell begins his tenure as the Doctor.