The Demon Headmaster is a series of books by Gillian Cross which were later adapted as a television series starring Terrence Hardiman in the title role.
The title character is a strange person (it is never made clear whether or not he is human) with the powers of hypnosis and a desire to take over the world - he believes it will be better under his ordered rule.
The show is adapted from four of Gillian Cross's "Demon Headmaster" novels. The first half of the first series is adapted from "The Demon Headmaster", the second half is adapted from "The Prime Minister"s Brain", the second series is adapted from "The Demon Headmaster Strikes Again" and the third series is adapted from "The Demon Headmaster Takes Over".
