H is for... Headmaster

In 1963, the Headmaster of Coal Hill School in Shoreditch, London, was a Mr H Parson. He had been captured by Daleks from the Imperial faction and made their mental slave through an electronic implant hidden behind his left ear. The Daleks used him to help install a  teleport system in the school's basement, and to act as their spy in the local area. When the Doctor and Ace visited he locked the Doctor in the basement after disabling Ace. Both managed to escape after she recovered and overpowered him. Later, he was sent to follow Sgt Mike Smith, who was working for agents of the rival rebel Dalek faction. When it looked like Smith was going to force him to divulge information, the Daleks used the implant to kill Parson.

Played by: Michael Sheard. Appearances: Remembrance of the Daleks (1988).

• This was Sheard's sixth and final appearance in Doctor Who. He appeared in stories with the First, Third, Fourth (twice), Fifth and Seventh Doctors.
• The Headmaster is never named on screen, but we know his name from the school's notice board which features in the story, and it is confirmed in the Class episode For Tonight We Might Die, when another notice board mentions him. According to a published short story, the H stands for Harvey.