Sam Bishop

 was a member of UNIT. He often went on dangerous mission. Kate Stewart sent him on a mission to the Gobi Desert to track an Energy unit. On this mission a set of Autons attacked him. He was then sent to Puerto Rico to track the Nestene energy units landing. (AUDIO: Earthfall) He sent Kate and Colonel Shindi to Black Archive 5, as there was something useful in the vault. (AUDIO: Armageddon)