Celestial Intervention Agency

The Celestial Intervention Agency (often abbreviated "CIA") was a secretive Time Lord organisation.

Their motto was "the story changes, the ending stays the same": their operatives protected the Web of Time by ensuring, by whatever means, that the net result of history remained constant, even though details might change. (AUDIO: The Kingmaker) Because they often violated the Time Lords' non-interference policy, they had to operate in secret so as to give plausible deniability to the High Council. (PROSE: World Game)

Shortly before the War in Heaven, the CIA removed themselves from time and became the Celestis. (PROSE: Alien Bodies)

Origins and nature
After the Imperator Presidency, the issue of intervention with the lesser species divided Homeworld society. (PROSE: The Book of the War) The CIA were created as a covert arm of the High Council to safeguard the Time Lords' interests. (PROSE: Shada) They functioned as spies, and it was said that they "don't even know which side they're on." (AUDIO: Mindbomb)

The Order of the Weal viewed interventionists as the biggest threat to the long-term "common good" of the Great Houses. Thessalia suspected that the intervention groups planted new mythologies into the Homeworld's noosphere through the caldera; (PROSE: The Book of the War) according to one account, the CIA evolved from a core group of Rassilon's guards. (PROSE: Lungbarrow)

CIA's involvement with the Doctor
The CIA first employed the Second Doctor to work for them following his trial for breaking the non-interference policy. The Doctor reluctantly agreed to go on a mission with the Time Lady Serena against the Players. (PROSE: World Game) According to one account, after they completed that mission, he was assigned to go with Jamie McCrimmon at his side to Space Station Camera to persuade Dastari to discontinue Kartz and Reimer's time travel experiments; (PROSE: World Game, TV: The Two Doctors) according to another account, this mission was actually assigned to the Doctor by the Monk, in the disguise of Chapter 9 Constable Pavo. (AUDIO: The Black Hole)

A Time Lord by the name of Lord Ferain appeared to the Fourth Doctor to send him on a mission to Skaro to avert the creation of the Daleks. (PROSE: Lungbarrow, TV: Genesis of the Daleks)

Rumour had it that the Doctor had been the best agent of the CIA. (AUDIO: Intervention Earth)

Co-ordinator Vansell of the CIA, saw that the Doctor's actions had allowed the Nestene Consciousness to escape destruction and saw to it that a trial for him would take place on Space Station Zenobia. (PROSE: Synthespians™) After the transportation of the Doctor's TARDIS to the Space Station Zenobia (TV: The Mysterious Planet) and the presentation of evidence, (TV: The Mysterious Planet, Mindwarp, Terror of the Vervoids) the trial concluded with the Doctor's prosecutor, the Valeyard, being exposed as the Doctor's own corrupt future self, exonerating the Doctor and causing political unrest on Gallifrey. (TV: The Ultimate Foe)

Other projects and missions
The CIA sent a Time Lord as their agent to Apertsu to serve as a security consultant; however, he was captured by Aubertides who wanted the secret of regeneration. (PROSE: Human Nature)

The CIA began to fear the number of temporally active races, so they began experimenting with various temporal technologies, including the TARDISes, in an attempt to move the minds of (newly created) TARDISes within the minds of aliens taken from over 50 planets. Time Lady Professor Klyst oversaw this experiment. (AUDIO: Unregenerate!)

The CIA sent a Time Lord to Jamie McCrimmon in order to correct a fluctuation in the timeline caused when Jamie tried to help King James II of England. (AUDIO: The Glorious Revolution)

They once had control of a TARDIS data file on the Master. (WC: Who Is The Master?)

During the final segment of the Last Great Time War, Rassilon sent a group of agents of the CIA along with Karlax, who had the mission to kill the War Doctor because of his opposition to the plans of the High Council. Before they could accomplish it, the agents died when their Battle TARDISes were all destroyed by the sudden attack of Dalek stealth ships. (PROSE: Engines of War)

President Romana sent the CIA agents Gandarotethetledrax and Cavisadoratrelundar to find the first Type 102 TARDIS, knowing that it would be a vital piece of technology in the upcoming war. They witnessed the Remote agent Compassion complete a transition to a sentient TARDIS, but they were halted by the people of the Catuvalani and the Eighth Doctor escaped with Compassion. (PROSE: The Shadows of Avalon)

Becoming the Celestis
Around twenty years before the start of the War in Heaven, (PROSE: The Book of the War) the CIA foresaw became worried that they might be erased from history in the upcoming fight between the Time Lords and the enemy. To escape this fate, they created Mictlan, a world outside of time and the universe for themselves to hide within. However, they also needed to remove themselves from the universe of physicality, and therefore turned themselves into the Celestis by erasing themselves from time and becoming ideas. (PROSE: Alien Bodies, The Taking of Planet 5)

During the Last Great Time War
At the start of the Last Great Time War, Romana was still Coordinator but the power of the agency in Time Lord Politics was decreasing as the power of the War Council increased. By the time the Daleks attacked Phaidon the agency still had enough power to potentially veto an asylum vote. Romana also negotiated a information sharing procedure between the CIA and the War Council (AUDIO: Celestial Intervention) Later in the early stages in the war the Agency was trusted to find a way so that Livia could resign on a constitutional technicality. The Agency had to stop Project Revenant from falling into the hands of the Daleks. (AUDIO: Desperate Measures)

Leadership
Sentris was head of the CIA for a time before discovering how many people she had sent to the Oubliette of Eternity. Upon discovering the number, she threw herself into it. (AUDIO: Neverland)

Coordinator Harom was head of the CIA for an unknown period of time. (AUDIO: Urban Myths)

Coordinator Rigan was head of the CIA whilst the experimentation on species for TARDIS pilots using Block Transfer Computation. (AUDIO: Unregenerate!)

Coordinator Vansell was head of the CIA during Romana's presidency until he encountered the Neverpeople. (AUDIO: Neverland)

Coordinator Narvin took over as head of the CIA following Vansell's death aboard the Time Station. (AUDIO: Neverland)

Bulek was head of the CIA during the resurrection of Morbius. (AUDIO: Sisters of the Flame,The Vengeance of Morbius)

Higher-ups
Sentris was the 217th Coordinator of the CIA. (AUDIO: Neverland)

Vansell was once Coordinator (AUDIO: The Sirens of Time) and was succeeded by Narvin following Vansell's death aboard the Time Station during the anti-time crisis. (AUDIO: Weapon of Choice)

Rigan was Coordinator early in the Doctor's seventh incarnation. (AUDIO: Unregenerate!)

A version of Straxus became Coordinator. (AUDIO: The Death of Hope)

Lord Ferain was Director of Allegiance for the CIA. (TV: Genesis of the Daleks)

Niroc was Lord President of the Time Lords after the Doctor was deposed during his long absence. The Celestial Intervention Agency removed Acting President Flavia from office and instated Niroc, a much more controllable President, in her place. (TV: The Trial of a Time Lord)

Ortan (PROSE: The Eight Doctors) and Ratisbon (PROSE: Warmonger) were Councillors involved with the CIA.

Farina was Coordinator when the Eleven escaped. (AUDIO: The Eleven)

Other Coordinators included Bulek (AUDIO: Sisters of the Flame), Sardon. (PROSE: World Game)

Romana II became the Coordinator after resigning from the Presidency to stop the Omega Wars. (AUDIO: Enemy Lines)

The Voice of the Agency and Almoner Crest Yeux were other high ranking members of the CIA.

Agents
Agents of the CIA include Commander Torvald, (AUDIO: A Blind Eye) Gandar, Cavis, (PROSE: The Shadows of Avalon) Glospin, (PROSE: Lungbarrow) Mortimus, (PROSE: The Quantum Archangel) Serena, (PROSE: World Game) Kurst, Levith, (AUDIO: Neverland) the Doctor, the Master, (AUDIO: Eyes of the Master) and Ace. (AUDIO: Intervention Earth)

CIA assets
The CIA developed psychic paper technology. (PROSE: World Game)

Space Station Zenobia (the location of the Sixth Doctor's trial) was the property of the CIA. (PROSE: The Eight Doctors) This Celestial Intervention Agency Space Station was undergoing demolition during the last days of the sixth incarnation of the Doctor. (AUDIO: The Brink of Death)

The Oubliette of Eternity a device which was supposed to remove people from history, but instead made them Neverpeople. (AUDIO: Neverland)

They possessed a Vortex Ops unit which scanned the Time Vortex for any anomalies. (AUDIO: Weapon of Choice)

Behind the scenes

 * Doctor Who writer and Script Editor Robert Holmes introduced the CIA in the "revisionist" story The Deadly Assassin, in order to address the contradiction between the Time Lord's non-interference policy and the Doctor having gone on missions for them. According to Holmes, then, all of the Doctor's previous missions took place on behalf of the CIA.
 * The acronym CIA is a reference to the Central Intelligence Agency, which in the real world would engage in covert activities outside of US soil while also maintaining "plausible deniability". Holmes originally conceived the Time Lords as corrupt and maintained that they worked in the same way.