Christopher H. Bidmead

Christopher H. (Hamilton) Bidmead (born 1941) is a British writer and journalist who wrote several TV serials, all of which he also novelised. He was also script editor for Season 18.

He was attached(agreed, but without a contract) to write several serials that were ultimatelly cancelled. They were In the Hollows of Time, a two-part (45 minute) story for the cancelled season 23, and a four parter Pinacotheca (a.k.a. The Last Adventure) which would have been the third part in the Trial of a Time Lord arc.

Contributions to the Mythos
Major characters and concepts created for or debuting in a Christopher H. Bidmead script include:
 * Fifth Doctor
 * Tegan Jovanka
 * The TARDIS' Cloister Room, Cloister Bell and Zero Room.
 * The concept of a regeneration going wrong to the point of possibly failing (a plot development repeated with later incarnations).
 * The concept of an "in-between" Doctor, in this case the Watcher (later, arguably, the Valeyard fit into this category, too).