I first asked Reece about 12 years ago when I started thinking about this project. We were in the midst of League of Gentlemen and I just remember thinking, if anyone plays Patrick Troughton, it should be Reece. Like the second Doctor, he’s small, saturnine and a comic genius. The complete package. He thought it was a fantastic idea and I've kind of nurtured it all this time.The actor told his Twitter followers this morning: "Very happy to confirm I am the 2nd Doctor. Very excited to be part of it."
Other cast members confirmed by the article include Jeff Rawle (peviously Plantagenet in Frontios and Mr Harding in Mona Lisa's Revenge) playing associate producer/director Mervyn Pinfield, Andrew Woodall as producer/director Rex Tucker, and Gatiss's partner Ian Hallard as original Dalek director Richard Martin.