The Six was by far the most violent of this Time Lord's incarnations, and had one of the most unstable personalities. He would often try to get the Eleven to butcher his way through a situation, regardless of whether the victims could be of use. (AUDIO: The Eleven)
As the Eighth Doctor described, the Eight was "the exception that proved the rule". (AUDIO: Planet of the Ogrons) Through meditation, he was able to suppress the voices of his previous incarnations. While assisting the Doctor and "Sister Cantica" in defeating the Clocksmith, he was shot. After retreating to the Doctor's TARDIS, he regenerated. (AUDIO: The Eighth Piece / The Doomsday Chronometer)
Now in a new body, he claimed to be a new incarnation of the Doctor to Helen Sinclair and Liv Chenka. Unlike his predecessor, the Nine did not try to be a "good man" and was motivated by kleptomaniac greed. (AUDIO: The Crucible of Souls, Companion Piece)
The Eleven was captured by the Seventh Doctor and imprisoned on Gallifrey. However, he managed to escape, so the Eighth Doctor was brought in to find him. (AUDIO: The Eleven) Along with Padrac, Caleera and the Clocksmith, he was a member of the Doom Coalition, a secret organisation of Time Lords who sought to bring about the end of the universe. (AUDIO: The Crucible of Souls, Stop the Clock)
During the Time War, the Eighth Doctor crossed paths again with this Time Lord, now in a new, female incarnation. Using a neural inhibitor, the Twelve was able to control the incarnations within her mind. (AUDIO: Planet of the Ogrons)
Behind the scenes
- As of January 2020[update], no name has been given in-narrative for this Time Lord in general (only for each of their incarnations). However, John Dorney, who regularly wrote stories featuring the character, has expressed a fondness for the name "the Collective".
- The Master refers to them as "that numerical non-entity" in 2019's Day of the Master.