Abigail Crowe
Abigail Crowe was a conspiracy theorist who hosted a pirate radio show late at night called Dark Talk, discussing extraterrestrial affairs around areas in Cardiff. Although her radio show is not important in the plot of the game until the last mission, it is recommended to listen to it each mission.
It was revealed in Mission 10 that the signal for the alien invasion was being broadcast from Dark Talk's radio station; in Mission 11 Gwen and Ianto stormed Dark Talk on air. Crowe transformed into her true alien form and took Ianto hostage. It was at this point she tried to activate the invasion signal but the recruit (player) activated a jamming signal and stopped the invasion. Crowe was then shot and killed by Gwen. (Torchwood Mission Game).