Ruth Matheson

Ruth Matheson was a captain who was in charge of the Vault.

Behind the scenes

 * Both Charlie and the Captain have surnames from Torchwood characters. Ruth has Rex Matheson's surname, and Charlie has Toshiko Sato's.
 * Both Yee Jee Tso and Ruth actress Daphne Ashbrook have played other characters before- Yee played Chang Lee, and Daphne Grace Holloway.