9 Stars Of Fortitude You'll Know From Doctor Who
4. Alexandra Moen
Who Is She: PC Petra, one of the Fortitude police force.
Who She Was In Who: Lucy Saxon, wife of Harold Saxon - otherwise known as The Master (John Simm) - who would become the only person to ever kill the Doctor's arch-nemesis entirely. And while he was revived, she took her own life to try and thwart his return in The End Of Time.