- You may be looking for Alistair Lethbridge-Stewart, the inhabitant of another universe.
He was born in 1929 on an Earth that existed in between the parallel universe and the normal universe. Both of his parents were killed in bombing raids, sometime between 1940 and 1945, when an alien power attacked the Earth. He was saved from that world by Colonel Alistair Lethbridge-Stewart and Major James Lethbridge-Stewart. His travel across realities cost him his left eye, and he was brought to the attention of Gordon Lethbridge-Stewart, the Director of External Security, who had lost his son, Alistair, some twenty-one years earlier.
Alastair aged faster than other individuals on the Inferno Earth. He was indoctrinated by his stepfather, the British Republic's External Security Director, into becoming "the perfect fascist". (PROSE: Ashes of the Inferno)
Unlike his counterpart, the Brigade Leader was clean-shaven. He captured and interrogated the Third Doctor, who had just arrived from his own universe. At first he seemingly had trouble believing the Doctor's story of having come from another dimension.
It eventually became clear that the Doctor had been telling the truth and the penetration of his Earth's crust would devastate the planet beyond recovery. He threatened to shoot the Doctor unless the Time Lord rescued him, Section Leader Shaw and Petra Williams, but instead the Section Leader shot him dead to save the other Earth. (TV: Inferno)
A vision of Alastair was seen by James Gore in the days leading up to and following the Inferno Project. This prompted James to visit the shed where the Third Doctor had travelled across universes, where he witnessed the Brigade Leader's death and was himself killed. (PROSE: Ashes of the Inferno)
Behind the scenes
- Nicholas Courtney, of course, played the part without the Brigadier's trademark (false) moustache.
- Dialogue in Inferno only refers to the Brigade Leader by his title and last name, but not by his first name.
- In the novelisation, the Brigade Leader confirmed that he was called Brigade Leader Lethbridge-Stewart.