 By 10 November 2014 , total comments by viewers posted below the video on YouTube numbered in the hundreds . The majority of comments were supportive . Visitors to the site wrote favourably of Capaldi 's actions to record the video for the child . A few observed that Capaldi 's version of the Doctor character is sinister and serious , and contrasted this with the actor 's depiction of the character as warm and effusive in his recording . 
