A fierce Sontaran commander who had lived for 12 years, a long time for a Sontaran, on the strength of his fighting skills. He is demoted to nurse by the Sontaran Empire. He fought and died at the Battle of Demons Run in 4037, because of a debt he owed the Doctor. He was summoned to help in the mission to rescue Amy and her baby and responded out of loyalty and bravery. He is later resurrected.