Yvonne Hartman (Pete's World)

Yvonne Hartman was a parallel universe counterpart of Yvonne Hartman, the leader of Torchwood One.

In 2007, she came through the Void after the Battle of Canary Wharf and went into hiding. (AUDIO: Poker Face)

When Torchwood Three was rebuilt in Cardiff by Gwen Cooper, and everything started to go out of hand after the Sorvix took over the city administration, she revealed herself to Torchwood, penetrating the Hub (AUDIO: The Empty Hand), and announced that she will depose Jack Harkness and become the new leader of Torchwood.

She successfully used Jack's secret connections to terrorist group Red Doors to convince the Torchwood team that he betrayed them and took charge. (AUDIO: Poker Face)