Andrew Szabó

 was a doctor who trained Sofia Rossiter and Sebastian Lawrence. He conducted an exploratory surgery on Evelyn Smythe. Sofia later asked for his help when Evelyn started having convulsions and Sebastian was shot. He after the war helped the Killoran prisoners back to help, but in fact has been experimenting on them. He gave Evelyn a sample of Killoran blood during her surgery. He deliberately killed Lawrence during his surgery. He tried to convince Melanie Bush that his plan was Lawrence's, before attempting to murder her. (AUDIO: Thicker Than Water)