President of Great Britain (Rise of the Cybermen)

The President of Great Britain on a parallel Earth in 2007 was friends with Peter and Jackie Tyler.

When John Lumic attempted to sell him his concept of immortality, the President refused its continuation for being obscene and unethical. As a consequence, he was murdered by one of many Cybermen who crashed Jackie Tyler's party to get him out of the picture. (TV: Rise of the Cybermen)

He was succeeded by Harriet Jones, who remained in office into 2010. (TV: Doomsday)