- You may be looking for Peter Capaldi.
Peter Capaldi was an actor in London. The Doctor once saved him from a Mandrel, and considered that he would have "made a great [him]".
After slipping into an alternate dimension where the Doctor's life was a TV show called Doctor Who, the Eleventh Doctor met Matt Smith, and asked Matt to suggest Peter Capaldi as Matt's replacement to Steven. (COMIC: The Girl Who Loved Doctor Who)