Pandad IV

This President was the Lord President of Gallifrey. Chancellor Goth expected to succeed him, but the President informed him he would choose someone else. On Presidential Resignation Day, Goth assassinated the President before he could make his announcement. (DW: The Deadly Assassin)

Behind the scenes

 * Given the average reign of a Time Lord President lasted a few centuries, it seems likely that this was the same President who had been challenged by Omega a few years earlier, possibly having regenerated.
 * The casting of Llewellyn Rees in the role of Lord President was an in-joke, as he had been General Secretary of the actor's union, Equity, for many years.