Terrorism was the act of committing destructive acts with the purpose of spreading fear for political or religious reasons. (AUDIO: Herald of the Dawn) Cyberterrorism was a form of terrorism. (TV: Reset)
The following year, several terrorist groups emerged in a period of political tension in 2002 brought about by the New Britannia Party. They included the United Front, Black Lightning and White Wolves. (AUDIO: The Fearmonger)
Xander Vaughn formed Red Doors, (AUDIO: Cardiff Unknown - October 2018) a terrorist group that targeted the Sorvix and ethnic minorities in Cardiff. (AUDIO: Changes Everything) They bombed Cardiff Airport. (AUDIO: Herald of the Dawn)
As a cover for alien invasion
Black Thursday was the cover story issued by the British government to hide the true nature of the Nestene's attempted invasion of Earth in the 1970s. It was used to explain that the Auton shop window dummies coming to life and the resulting deaths that followed this incident were because of terrorists, which many citizens theorised were of the Irish Republican Army. (PROSE: Who Killed Kennedy, TV: Spearhead from Space) A later Nestene invasion (TV: Rose) which occurred on 5 March 2005 would be covered up in the same way. (AUDIO: One Rule)
As Gwen Cooper told Jack Harkness, Rhys Williams believed that occurrences such as the spaceship over London on Christmas Day and the Battle of Canary Wharf were the result of "sort of terrorism.", suggesting that they had put psychotropic drugs in the water supplies, resulting in mass hallucinations. Jack replied "Yeah, well your boyfriend's stupid." (TV: Everything Changes)
When a fracturing of the Cardiff Space-Time Rift resulted in time slips occurring worldwide, initial news reports suggested terrorist involvement. When Rhys asked Gwen if she thought terrorists were responsible, Gwen replied "terrorists bomb things, this is different." (TV: End of Days)
Elsewhere in the universe
Behind the scenes
Very few acts of real-world terrorism have had an indirect impact on Doctor Who media. The initial broadcast of The Pyramid at the End of the World had a line of dialogue referring to the general act of terrorism removed in response to the Manchester Arena Bombing which occurred five days prior. The Orlando nightclub shooting, an attack at a gay nightclub in which the majority of the victims were members of the LGBTQ+ community, prompted Class creator and writer Patrick Ness to reveal earlier than planned that the show would have an openly-gay lead, with Ness citing the early reveal being because it felt less important to keep it a secret in light of the attack.
- O'Connor, Roisin (26 May 2017). Manchester bombing: Doctor Who episode edited after terror attack at Ariana Grande concert. The Independent. Retrieved on 27 May 2017.
- Huw Fullerton and Paul Jones (27 May 2017). Doctor Who episode edited for Saturday airing following Manchester bombing. RadioTimes. Retrieved on 27 May 2017.