Yea, Delgado Master is in all of Series 8 (5 straight Serials), 2 of the 5 Serials in Series 9 , and then one Serial in Series 10. After that, we don't see The Master until he shows up crispy in Series 14 The Deadly Assassin
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?