Yvonne Hartman

Yvonne Hartman is a human female and victim of the Chrono Slayer, who killed and erased her from history.

In the original timeline, she was the director of Torchwood One. During her time as leader of the Torchwood Institute, she aggressively pursued alien threats and advances for humanity through "fallen angel" technology scavenged. Ultimately, her regime fell in the fateful Battle of Canary Wharf in 2007, where she was presumed to have died.

Though her attitude put her at odds with the Doctor, Yvonne Hartman was responsible for the neutralization of several threats to Earth, most notably a reprisal of WOTAN. In addition, several examples of alien technology which proved instrumental in pivotal events in human history, such as the Magna-Clamps and the Jathaa sunglider, were salvaged under her watch.

Seeking to disrupt the Web of Time, the Chrononatrix sent the Chrono Slayer to eliminate her from the timeline.

As it turned out, though Yvonne's mark was wiped from history, she continued to exist after being slain in the form of a Neverperson, whom was absorbed into the Neverloff. When the Doctor Donna found her absorbed, her face was seen embedded into the Neverloff's bum.