It has now been one week since the identity of the Twelfth Doctor was released. Has it really only been a week? I guess a week is a long time on Tumblr. In any case, we now know that Peter Capaldi will be playing the twelfth incarnation of the Doctor on the BBC’s long-running sci-fi series, Doctor Who. Suddenly, a lot of Doctor Who fans have been made aware of Peter Capaldi and they might be wondering where to look for his previous performances. Here are some recommendations for what you might watch to become familiar with Mr. Capaldi and his acting chops.