The cast of 'Number 10.' Courtesy of Getty Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Rafe Spall will play the British prime minister in a new political comedy-drama Number 10. In August, The Hollywood Reporter broke the news that Sherlock creator Steven Moffat was penning his first project for Channel 4, a series following one of the most famous addresses in the world.