The Ghosts of N-Space is a radio drama based on the long-running British science fiction television series Doctor Who. It was recorded in 1994 and finally broadcast in six parts on BBC Radio 2 from 20 January to 24 February 1996. This was the second Third Doctor radio play, following The Paradise of Death in 1993. Plans for subsequent serials were abandoned after the death of Jon Pertwee in May 1996. The announcer in the radio serial gave the title as Doctor Who and the Ghosts of N-Space, but both the cassette and CD releases have dropped the "Doctor Who and" prefix in their packaging, as does the novelisation. It was written by Barry Letts, and featured Jon Pertwee as the Third Doctor, Nicholas Courtney as Brigadier Lethbridge-Stewart and Elisabeth Sladen as Sarah Jane Smith. The recording was originally released on cassette in 1996, re-released on a three CD set in 2000. Cast The Doctor — Jon Pertwee Brigadier Lethbridge-Stewart — Nicholas Courtney Sarah Jane Smith — Elisabeth Sladen Jeremy Fitzoliver — Richard Pearce Clemenza — Jonathan Tafler Don Fabrizzio — Don McCorkindale Max — Stephen Thorne Nico — David Holt Maggie — Sandra Dickinson Mario — Harry Towb Louisa — Deborah Berlin Umberto — Peter Yapp Maid — Joanne Sergeant Paolo — Paul Brooke Barone — Gavin Muir Baronessa / Marcella — Jillie Meers Roberto — Jonathan Keeble Guido — Jim Sweeney Plot Sarah Jane Smith and her co-worker Jeremy Fitzoliver are on holiday in Sicily when they meet the Brigadier. The Brigadier is trying to help his Uncle Mario, who is being threatened by a mobster named Vilmio. Mario is also trying to deal with the ghosts that have been sighted in his castello. The Brigadier asks the Doctor to investigate the hauntings and determine their source. The Doctor reveals that the ghosts are "N-Bodies", or the souls of the deceased who have not yet left the physical plane. The ghosts are gathering around Mario's castello due to a fracture in the N-Space barrier; if the barrier were to fail, Earth would be overrun with the monsters that inhabit N-Space. The Doctor travels back to the 19th and 16th century in an attempt to locate the cause of the fracture. In the past he discovers that Vilmio is actually an alchemist called Vilmius who has discovered a method for extending his lifespan; now that he is nearing the