The Natural History of Fear (audio story)

 was the fifty-fourth monthly Doctor Who audio story produced by Big Finish Productions. It featured Paul McGann, India Fisher and Conrad Westmaas.

Publisher's summary
IT IS A CRIMINAL OFFENCE TO COPY OR ATTEMPT TO COPY ANY PERSONALITY OR MEMORY-RELATED ARTICLE SHOWN OR DISPLAYED IN THIS PUBLIC THEATRE, INCLUDING THIS WARNING. PUNISHMENT OR CONVICTION IS AN UNLIMITED REDUCTION OF AUTHORISED OVERTIME HOURS AND TOTAL PERSONALITY REVISION. YOU ARE NOT PERMITTED TO BRING ANY JUKEBOX OR RECORDING EQUIPMENT INTO THIS PUBLIC THEATRE. THIS WILL BE TREATED AS AN ATTEMPT TO BREACH COPYRIGHT. ANY PERSON DOING SO CAN BE EJECTED AND THE EDITOR MAY CONFISCATE SUCH ARTICLES. WE ASK THE PUBLIC TO BE VIGILANT AGAINST ANY SUCH ACTIVITY AND REPORT ANY MATTERS AROUSING SUSPICION TO THEIR LOCAL CONSCIENCE. THANK YOU.

Public Warning

Faction Against Character Theft

Cast

 * Eighth Doctor / The Editor - Paul McGann
 * Charley Pollard / Female Prole / Nurse 3 / Conscience 2 / Censor 2 - India Fisher
 * C'rizz / Conscience 1 / The New Editor - Conrad Westmaas
 * Voice of Light City / DJ - Geoff Searle
 * Sub-conscience / Certification Board Member 2 - Alison Sterling
 * Sub-editor / Certification Board Member 3 / Citizen / Censor 1 - Sean Carlsen
 * Male Prole / Engineer / Fire Chief - Wink Taylor
 * Broadcast Lodge Receptionist / Nurse 2 - Jane Hills
 * Nurse 1 / Shipping Clerk / Trooper / Certification Board Member 1 - Ben Summers

Continuity

 * The Doctor previously referred to the Censor shortly after he and Charley entered the Divergent Universe, though paradoxically he did not know who he was at the time. (AUDIO: Scherzo)
 * The Doctor, Charley and C'rizz contributed their memories to the pool used to programme the Proles. The memories broadcast as part of the mandatory Infotainment hours include the Doctor and Charley's first visit to Gallifrey (AUDIO: Neverland), their encounter with the Threllips in Ferrara, Italy on 11 July 1982 (AUDIO: Living Legend), their first meeting with C'rizz in Zone Eutermes (AUDIO: The Creed of the Kromon) and the Doctor reciting a fable about a wise king who passed the reins of power to his foolish son and heir (AUDIO: Scherzo).
 * The Editor refers to the Great Fire of Rome in July 64. (TV: The Romans)
 * The Doctor is aware that C'rizz is a monk and understands why he killed L'da in the Kromon biosphere. (AUDIO: The Creed of the Kromon)