The first look at DERRY GIRLS actress Nicola Coughlan on the set of the upcoming season of DOCTOR WHO has been released. Known for her breakout roles in DERRY GIRLS and BRIDGERTON, Coughlan will be guest starring alongside SEX EDUCATION star Ncuti Gatwa’s DOCTOR WHO. The show’s 15th series will also introduce CORONATION STREET‘s Millie Gibson as the Doctor’s companion, Ruby Sunday. Gatwa’s Doctor is set to debut on Christmas Day this year, with an episode entitled THE CHURCH ON RUBY ROAD.