He was attached (agreed, but without a contract) to write several serials that were ultimately cancelled. They were In the Hollows of Time, a two-part (forty-five 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 of the The Trial of a Time Lord arc.
He also contributed to the charity reference book Behind the Sofa: Celebrity Memories of Doctor Who.
Big Finish Doctor Who audio stories
- Renaissance of the Daleks (credited as "Based on a story by Christopher H. Bidmead")
- The Hollows of Time
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).