Tillyard was a guardsman in Corus in the third century of the Human Era, assigned to Evening Watch at Jane Street kennel. He had been in the Guard since 237 HE. By 247 HE he was partnered with Marks. Both of them had duty on Stuvek Street the night the Bread Riot broke out. Unlike the other Dogs on duty there they didn't show any injuries the next morning, indicating that they didn't help their peers with fighting down the riot. For this they were dismissed from service. He only appears very briefly as a minor character in Bloodhound.