Torrence (Castle Hydra)

Torrence was a criminal who was hired by Callis. He wanted to be more harsh on the prisoners. (AUDIO: Castle Hydra)

The Doctor would eventually discover that Torrence, along with many other people throughout history who looked like him, were caused by a group of Time War Daleks who — while on a mission to prevent the rise of Time Lord society on Gallifrey — created a time distortion which created alternate versions of themselves as four un-mutated Kaled people. This time distortion also caused there to be multiple copies of these four Kaleds at various points throughout time and space. (AUDIO: Effect and Cause)