Petra (Dead Media)

Petra was a quantum physics student at St Luke's University, where she was lectured by the Twelfth Doctor. She was originally from Port Talbot. Petra was also head of the A/V club.

In 2017, she asked the Doctor to participate in her podcast, People of St Lukes. However, the two of them discovered a creature which lived between dimensions, which the Doctor released, not realising its destructive power. Petra died saving the university, and the Doctor paid tribute to her sacrifice in the unbroadcast podcast episode. (AUDIO: Dead Media)