Minister of War
From Tardis Wiki, the free Doctor Who reference
The Doctor encountered the Minister of War sometime between 1980 (TV: Before the Flood) and 2119. (TV: Under the Lake)
He was mentioned by Alice O'Donnell when mentioning events that happened after 1980. The Twelfth Doctor did not recognize the name and did not wish her to elaborate hoping to avoid spoilers. (TV: Before the Flood)