XXX

The XXX (pronounced "Triple X") were intelligent bipeds who could be aggressive when provoked. They lived on Planet XXX and made contact with Earth in 1993, when a spacecraft defended itself against Torchwood One and killed a number of people, including bystanders such as Howard Allan. For this, Rachel Allan planned to take over Torchwood and wage war against the XXX.

Torchwood sent out messages of war, prompting the XXX to send an envoy to speak to Yvonne Hartman. (AUDIO: Through the Ruins) The situation was resolved when Yvonne took back Torchwood from Rachel. (AUDIO: Uprising)