Giles Kent

Giles Kent was the leader of a plot to take down Ramón Salamander. He had formerly been Deputy Security Leader for North Africa and Europe in the World Zone Authority. He had been discredited and ruined by Salamander. When he saw the Second Doctor's resemblance to Salamander in 2018, he persuaded the Doctor to impersonate Salamander.

Kent was actually allied with Salamander all along, and was the one who brought Salamander's scientists to the underground complex. He secretly planned to kill Salamander and take over his operations, but pretended that he just wanted to expose Salamander as evil to get the Doctor on his side. After the Doctor exposed him, he was killed in an explosion after a tussle with Salamander. (TV: The Enemy of the World)