Peter Capaldi was 54 in Doctor Who: The Day of the Doctor when he played the character 'The Doctor (12) (uncredited)'.
That was over 10 years ago in 2013.
Today he is 66, and has starred in 77 movies in total, 22 of those since Doctor Who: The Day of the Doctor was released.
In Doctor Who: The Day of the Doctor, I think Peter Capaldi looks: