Hath Peck

Hath Peck was a Hath fighting in the war against the Humans on Messaline. He was caught in a blast detonated by Jenny and had a dislocated shoulder. His comrades kidnapped Martha Jones. Martha puts his shoulder back in place just as the Hath was about to kill her he told them not to. The Hath discovered that there were secret tunnels in there base so they were forced to raid them to win the war. Martha found a passageway to the top of the planet and signaled Peck to come with her, he did so. As they were walking Martha fell into a swamp and she started to sink. Peck saved her by getting in the water and hoisting her to Land. As a result Peck went underwater and drowned. Martha was evidently affected by his death. (DW: The Doctor's Daughter)