 " From The Doctor to my son Thomas " is a viral video recorded by actor Peter Capaldi and sent to autistic nine @-@ year @-@ old Thomas Goodall to console the child over grief from the death of Goodall 's grandmother . Capaldi filmed the video in character as the 12th incarnation of the Doctor in the BBC science @-@ fiction series Doctor Who . Capaldi 's message had a positive effect on Thomas ; his father said the boy smiled for the first time since learning of his grandmother 's death and gained the courage to go to her funeral . 
