 The video had a positive impact on those with mental health problems . Autism Daily Newscast reported favourably on Capaldi 's actions . The Hollywood Reporter observed that as his character the Doctor , Capaldi was using his role to support mental health . Hollywood Life said their reporters were moved to tears after watching Capaldi 's video . Peter Harness , writer of the episode " Kill the Moon " , said Capaldi 's video was his favourite highlight from ten years of Doctor Who . 
