The upcoming series will be Capaldi’s last as the irascible Twelfth Doctor. He said “From our brilliant crew and creative team working for the best broadcaster on the planet, to the viewers and fans whose endless creativity, generosity and inclusiveness points to a brighter future ahead. I can’t thank everyone enough. It's been cosmic."
The upcoming series will also be the last for showrunner Steven Moffatt who is giving up the mantle to Broadchurch creator Chris Chibnall.