A. Dunlop (TV: For Tonight We Might Die) was a teacher at Coal Hill School. He interrupted Clara Oswald's English lesson to inform her she had a phone call from UNIT. He took over for Clara as she left the school to deal with Missy. (TV: The Magician's Apprentice)
He was on Coal Hill School Roll of Honours Board, meaning he died before October 2016. (TV: For Tonight We Might Die)