Severine
Severine was the last of her people after her homeworld was destroyed by the War Master in an act of chemical warfare. She was tasked with guarding the Master during his trial with the High Vectors, she had psychic ability to stop the Master from escaping. The Tenth Doctor worried about her abilities to keep the Master contained. She was able to communicate with The Doctor's TARDIS. The Master thought that she enjoyed her job and that she was incorruptible. The Vector's later had her also contain the Doctor as well. The Master realised that she never used his title, as she knew it wasn't his name. She was killed by the nanites that were set up to stop the Master escaping. (AUDIO: The Last Line [+]Loading...["The Last Line (audio story)"]).