Doctor Who: Peter Capaldi Photos Scottish actor Peter Capaldi arrives for the world premiere of his film "World War Z" in London June 2, 2013. There's a new doctor in town. And no, he will not be sporting a bowtie this go around. On Monday, BBC America posted this gallery of portraits of the 12th incarnation of the sci-fi icon, who is being played by Scottish actor Peter Capaldi. The series is still in production and set to air later this year on the BBC. BBC America