Malorie Blackman
From Tardis Wiki, the free Doctor Who reference
Malorie Blackman co-wrote the Doctor Who television story Rosa, with Chris Chibnall. She is the first non-white writer to contribute a script for televised Doctor Who.
Blackman previously wrote the fiftieth anniversary Seventh Doctor Puffin eshort The Ripple Effect, which also made her the first non-white writer for the series of eleven Puffin eshorts as well. She was also the 2013-2015 Children's Laureate.