After the Host escaped, Sir Robert realised the only way to salvage his name and reputation was to sacrifice himself to protect the Queen. He held the werewolf off for a few vital seconds outside the observatory, allowing the Tenth Doctor time to find a way out, before he became its final victim. (TV: Tooth and Claw) When Davros asked the Doctor, "How many have died in your name?", Robert was one of those he remembered. (TV: Journey's End)