Petra Ral is a doctor, working along side her co-worker and friend Dr Hanji Zoe. The pair of them were personally invited to Rapture by the creator Andrew Ryan himself, believing the pair of them could do vital research in Rapture. Which leads to Hanjis  break out in Adam, and her drifting off to work for Fontaine. Petra, however, did not become as engrossed in the discovery as Hanji and refused to be a part of the work, unti lshe was forced by her friend. For people who have played the game, she is very much like Brigid Tenenbaum. In fact, she fills the shoes (replaces to be blunt >,>) for the character.

Petra sounds very mature, sweet and kind when she speaks, and is extremely warm and welcoming to others. Yet, when sufficienly provoked, can become angered. Any accent would work, but a Russian accent is preferred.