PROBE: The Zero Imperative
Former UNIT luminary Liz Shaw and her assistant Bayliss are investigating a series of bizarre murders, all committed near a soon-to-be-closed psychiatric hospital. When the hospital is unexpectedly reprieved by rich Industrialist Peter Russell events seem to move out of Liz's control. Are the incumbent director of the clinic, Doctor Dove and his predecessor Doctor O'Kane harboring the killer? What is the centuries-old horror hidden in the grounds? And what exactly is the secret of room zero?
Caroline Johnas Dr. Elizabeth ShawJon Pertweeas Dr. Jeremiah O'KaneSylvester McCoyas Dr. Colin DoveColin Bakeras Peter RussellMark Gatissas Dr. William BruffinLouise Jamesonas Patricia HaggardSophie Aldredas Public Relations OfficerLinda Lusardias Louise BaylissDavid Terenceas Daniel O'Kane / Eustace O'KaneNicola Fulljamesas Dr. Beatrice HearstPatricia Merrickas Dr. Julie GilchristJonathan Rigbyas CummingsAlexander Kirkas OrderlyDaniel Millsas Ghostly Child VoicePeter Davisonas Patient One