Behind the Scenes
This story takes place between the television adventures, The Trial of a Time Lord and Time and the Rani and after the Big Finish audio adventure.
- Sara Griffiths previously appeared in Doctor Who on television with Seventh Doctor, Sylvester McCoy. She played Welsh accented Ray in Delta and the Bannermen.
- Gyles Brandreth, who plays Doctor Marriott in I.D. has had an interesting and varied career. He has authored several books, worked as a television script-writer, served as an MP and can be regularly be heard on Radio 4 on such shows as Just a Minute and his own The Brandreth Rules.
- Helen Atkinson Wood is well known for her comedy roles on radio and television including appearances in The Young Ones, KYTV and Blackadder in which she played Mrs Miggins.