The Inner Council consisted of the President, the High Chancellor, and the Castellan. (TV: The Deadly Assassin, The Five Doctors)
If the other two members of the Inner Council were in agreement they could overrule the Lord President, an event which happened, when, against President Borusa's wishes the Castellan and Chancellor Flavia voted to summon the Tremas Master to Gallifrey. (TV: The Five Doctors)
Behind the scenes
- According to DWM 100, the Inner Council was in fact the Lord President, the Lord Chancellor, the Castellan, a Lord Cardinal and a Councillor.