Guard (Robot of Sherwood)

In or around 1190, the Sheriff of Nottingham commanded a guard to listen in on the dungeon cell that the Twelfth Doctor, Robin Hood and Clara Oswald were imprisoned in to determine who was the "true ringleader" of the group, so that the guard could take them to the Sheriff for interrogation. He decided it was Clara who was to be taken to the Sheriff. Later, after Robin faked being ill to get the guard's attention, the Doctor told the guard about a "vital message" that Robin possessed that the Prince promised an "enormous" bounty on. Robin invited the guard to come closer, and then knocked him out. The Doctor and Robin tried reaching the guard's keys to free themselves from their manacles, but accidentally kicked the keys over to the other side of the room. (TV: Robot of Sherwood)