Twelfth General

Kenossium (COMIC: The Clockwise War) was a General in the Time Lord military and was commonly referred to by this rank. (TV: The Day of the Doctor, Hell Bent; COMIC: Supremacy of the Cybermen; PROSE: Lords and Masters)

Early days
She was female in her first incarnation and would remain so for her first nine regenerations. (TV: Hell Bent)

Like all Time Lords, Kenossium was taken from her family at the age of eight for the selection process in the Drylands. Staring into the Untempered Schism as part of a Time Lord initiation rite, she was inspired by what she saw in the Schism. (PROSE: A Brief History of Time Lords)

At the Time Lord Academy, Kenossium was mentored by Bellator, whose lessons taught her how to survive "four-time campaigns and a Time War". (COMIC: The Clockwise War)

Kenossium once found the Master in the Siege of the Chronotide, screaming for mercy as the Multiform closed in. (PROSE: Lords and Masters)

Eleventh incarnation
Under unknown circumstances, Kenossium's tenth regeneration resulted in a male incarnation. He appeared as a middle-aged light-skinned male with no hair. (TV: The Day of the Doctor) He also had grey eyes. (PROSE: Lords and Masters) He described himself as the Time Lords' military commander. (TV: Hell Bent)

Kenossium led the War Council and its efforts to defend Gallifrey from the Dalek onslaught in the final days of the Last Great Time War. In the aftermath of the Fall of Arcadia, he was informed of the War Doctor's appearance there. He was then alerted to a security breach in the Time Vaults, discovering the Doctor had taken the Moment and intended to use it.

He was later contacted, much to his displeasure, by three incarnations of the Doctor, the War Doctor, the Tenth and Eleventh Doctor. They revealed to him their plan to save Gallifrey by freezing it before its destruction and shifting it to a pocket universe. Kenossium was sceptical, shocked by the thought of being lost and forgotten in another universe and stated that the calculations would take centuries. The Doctors informed him that they have recruited all their incarnations to help and that while the Time Lords would be lost, they'd at least have hope which they didn't have at that point. The Doctors also told Kenossium that the alternative was burning and no one wanted that. As the General continued to hesitate, the Dalek fleet realised something was wrong and increased their firepower. Realising he was out of options, Kenossium ordered the Doctor to "just do it." The thirteen Doctors then succeeded in freezing Gallifrey and shifting it to a pocket universe, causing the Dalek fleet to destroy themselves while the Time Lords were saved. (TV: The Day of the Doctor)

When the Eleventh Doctor was on Trenzalore, Kenossium asked through the crack, "Doctor who?" (TV: The Time of the Doctor)

Kenossium sent on a mission with Yayani to stop Kalub from developing his experiments further, as they would expose Gallifrey if successful. He was present at the location where Missy sent Yayani's shrunk dead body back to Gallifrey. (PROSE: Lords and Masters)

When the Twelfth Doctor returned to Gallifrey, Kenossium discussed the event with Rassilon and the High Council. He told Rassilon that the Doctor had the respect of his men as he was the one who won the Time War and had served with many of them. When Rassilon ordered the firing squad to kill the Doctor, the General protested but made no move to stop them. The squad purposefully missed and sided with the Doctor. When military ships arrived, Rassilon assumed Kenossium had summoned them. However, the Doctor told Rassilon he'd called the ships and the ships chose to provide the Doctor with backup. As Rassilon prepared to kill the Doctor with his gauntlet, Kenossium stopped him, telling Rassilon, "Lord President, with respect, get off his planet." Kenossium then dropped his gun and stood at the Doctor's side against Rassilon. Rassilon was exiled from Gallifrey and Kenossium informed the Doctor that Gallifrey was at "the end of the universe, give or take a star system", and as such, Rassilon may have nowhere to go. When Kenossium continued to call Rassilon the President, the Doctor corrected him that he was the President now. The Doctor agreed to assist the High Council in learning the true identity of the Hybrid. To do this, he claimed that Clara Oswald had vital information and insisted she be extracted from the point of her death and brought to him on Gallifrey. Kenossium facilitated this but quickly discovered that the Doctor had merely lied in an extraordinary attempt to save Clara.

Kenossium insisted that any attempt to prevent Clara's death as an established historical event would have grave consequences for the timeline. Attempting to prevent the Doctor from escaping with Clara, Kenossium was threatened by the Doctor who stole his gun. Kenossium and Clara attempted to talk sense to the Doctor with Kenossiuml reminding the Doctor that the gun had no stun setting. Finally, the Doctor asked which regeneration Kenossium was on. Kenossium realised what the Doctor intended and stated that he was on his tenth regeneration and thus his eleventh incarnation. After the Doctor and Kenossium wished each other luck, the Doctor shot Kenossium which caused him to immediately regenerate, giving the Doctor time to flee with Clara. (TV: Hell Bent)

Twelfth incarnation
Kenossium quickly recovered after regenerating, this time having the form of a dark-skinned woman with a shaven head. She observed that she was "back to normal" and rhetorically asked how men continually dealt with "all that ego". With assistance from Ohila, Kenossium continued to pursue the Doctor into the Cloisters. She exchanged words with Clara and seemed to respect the human's opinion. Unfortunately for Kenossium, Clara had been buying enough time for the Doctor to escape and steal another TARDIS, and the pair fled from Gallifrey. (TV: Hell Bent)

After the Cyberman invaded Gallifrey, Kenossium, planning to fight back against the invaders, rescued the Twelfth Doctor from Rassilon with her soldiers, teleporting him in the Tomb of Rassilon. When Rassilon found them, the Doctor opened the door to face him. The Lord President took them to the cyber-converted Eye of Harmony, and put Kenossium inside one of the looms to power it, in order to store regenerative energy to create a new universe. Kenossium was freed after the Doctor and Rassilon joined forces to regenerate the universe back to its former state. (COMIC: Supremacy of the Cybermen)

Eleventh incarnation
During the Last Great Time War, Kenossium was devoted to defeating the Daleks and saving his species. He was shown to be a greatly respected military leader who didn't seem impressed with Rassilon and the High Council's plans to save their species. He was also shown to not think highly of the War Doctor, calling him "the mad fool" and saying that three Doctors arriving was "all [his] worst nightmares at once" and that twelve of them turning up was even worse. He was also stunned by the idea that Gallifrey and the Time Lords' only option was to be frozen in a pocket universe and was knowledgeable about the fact that it would take a very long time to make such calculations. However, he is shown to be able to make quick decisions when the need arises as seen when the Dalek Fleet increased their firepower on Gallifrey and he ordered the Doctor to "just do it" rather than continuing to hesitate over his decision. (TV: The Day of the Doctor)

Following the end of the Last Great Time War, Kenossium gained a great respect for the Twelfth Doctor. When Rassilon questioned who the Doctor thought he was ignoring the military, Kenossium called him "the man who won the Time War" with a respectful tone. When Rassilon ordered the Doctor's execution, Kenossium protested but chose not to disobey orders like his men. However, he also did nothing to stop his men as they sided with the Doctor. When Kenossium defected to the Doctor's side, he ordered Rassilon off Gallifrey in a way that showed he was disgusted with the former Lord President. He did, however, question the Doctor's decision to banish Rassilon, as there may be nowhere for him to go and Rassilon was once a good man. He accepted the decision regardless though.

When he realised the Doctor had manipulated the situation to save Clara Oswald, Kenossium showed no fear as he stood his ground against an armed Doctor, merely trying to talk some sense into him and get him to stand down. When the Doctor asked which regeneration Kenossium was in, Kenossium seemed to understand what he meant but again showed no fear. When the Doctor wished him good luck before shooting him, Kenossium did the same, remaining magnanimous towards him to the end despite the fact that the Doctor was about to shoot him. (TV: Hell Bent)

Twelfth incarnation
As a woman, Kenossium showed a distaste for the egos of men and was at least partly relieved to be a woman again. While trying to stop the Doctor, she allowed Clara to say some final words to him before she was sent back to die, showing some compassion and listened stoically as Clara called the Time Lords monsters. However, she was shocked by the Doctor's escape with Clara's help and somewhat panicked by it. (TV: Hell Bent)

Behind the scenes

 * The General's name was given as Kenossium in COMIC: The Clockwise War.
 * In his first-seen incarnation, Kenossium was played by Ken Bones, who also provided the Time Lord voice asking the Question, "Doctor who?", in The Time of the Doctor. Although not explicitly confirmed, it can be inferred that the voice asking the Question was that of Kenossium. Indeed, the subtitles on the Blu-Ray and DVD identify the voice as that of "the General".
 * Kenossium's regeneration in Hell Bent marked the first time a gender-swapped regeneration was shown on television. Michelle Gomez's was the first gender-swapped Time Lord depicted on television, but her actual regeneration occurred off-screen. The very first gender-swapped regeneration was depicted in AUDIO: The Black Hole, which was released two weeks before Hell Bent.
 * Incidentally, it was also the first regeneration witnessed in the revived series where the Time Lord in question was lying down, rather than standing up and the regeneration was far calmer than is generally seen with Time Lords such as the Doctor and.
 * Kenossium was dubbed in the German version of The Day of the Doctor by voice actor Axel Lutter.

El General Le Général