Josh Carter

 was a member of UNIT under Kate Stewart's leadership. He didn't complete his training which frustrated Colonel Shindi. He liked to test the boundaries and think outside the box. (AUDIO: Vanguard) Kate sent him on a search to find the Autons in the UK after he was concerned about Osgood going on a field mission. (AUDIO: Earthfall) He went undercover as a Devlin Futuretech employee to get more information. He saved Jacqui McGee from being killed by an Auton. He then, with the help of Osgood, to hack the mainframe and stop the Nestene from combining. Simon Davlin then converted him into an Auton-like creature. (AUDIO: Bridgehead) The Nestene Consciousness planed to use him to destroy UNIT. Osgood managed to overcome this control. He gained super strength allowing him to bend metal a couple of inches thick. He studied Electrical Engineering. (AUDIO: Armageddon)