Peter Moffatt
From Tardis Wiki, the free Doctor Who reference
Peter Moffatt (15 April 1922-21 October 2007) directed several Doctor Who stories, including three starring Peter Davison, who coincidentally was born Peter Moffett. He had already worked with Davison on All Creatures Great and Small. Many people thought that Davison was using his real name to direct and star in the same shows. (DCOM: The Five Doctors)
When presented with Christopher H. Bidmead's altered version of Terrance Dicks' State of Decay, Moffatt refused to direct it, saying it lacked the gothic atmosphere of the original version. John Nathan-Turner allowed him to produce the original. (DOC: The Vampire Lovers)