The BBC have issued the below promo photo of Suchet as the titular landlord in the episode written by Brit writer Mike Bartlett (The Town, Doctor Foster).
The 14-episode Series 10 will see the Doctor joined by a new companion, Bill, played by Pearl Mackie. It will be the last series with Steven Moffat as showrunner — he’s set to hand the reins over to award-winning writer Chris Chibnall for Series 11.
Rumors had begun swirling that Peter Capaldi might leave with Moffat’s exit, but he’s recently been confirmed to stay on another series.
Only a Christmas special will air in 2016, with the rest of Doctor Who Series 10 beginning broadcast in Spring 2017.