'Doctor Who': 7 Realistic Casting Choices for the 12th Doctor

Ever since Matt Smith announced that he would be leaving Doctor Who after three seasons and a 50th anniversary special, there has been fevered speculation as to who might be his replacement. UK bookies are currently offering favorable odds on Harry Potter actor Rupert Grint and - amongst many others - Sherlock star Martin Freeman, who is currently adventuring in Middle-earth as he films The Hobbit: The Desolation of Smaug.

The eleventh incarnation of the Doctor, however, was neither a bookies' favorite nor a popular demand, but was instead someone that almost no one had ever heard of before, let alone nominated for the lead role. With that in mind, here's a list of a few potential candidates who could handle the role and who could realistically dedicate the next stage of their careers to playing the Doctor, but whose names haven't cropped up on many lists so far.

In the spirit of regeneration, this list is both gender and color blind. We have, however, only selected actors and actresses who have not already guest-starred on the show (an ever-dwindling number).

Read on to find out which possible actors for the 12th Doctor Who might have been missed in the speculation so far.

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