Theory:Timeline - Kate Stewart

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This page lists appearances of the Kate Stewart in the order in which she experienced them. This timeline is based upon observations of the Doctor Who universe and the events that occur during each of these stories. From these observations we have attempted to build a concise timeline. It is assumed, much like its TV story counterparts that for each novel or audio series their published/numbered order is the order they occur in. This does not apply to short stories which are often ambiguous about their placement. There are also many gaps between stories.

The layout of this timeline is in part based on the observations on Doctor Who Reference Guide and Doctor Who - The Complete Adventures, as well as Lance Parkin's AHistory and other sources that allow us to make observations, such as The Whoniverse, Doctor Who Reviews, The History of Doctor Who, The Discontinuity Guide, Clive Banks databanks, and The Divergent Universe forum. None of these sources should be used solely as a source or considered a "true" timeline for stories.

Timeline[[edit source]]

Early life[[edit source]]

The events of The Schizoid Earth are almost five years ago. The Brigadier is married to Fiona and Kate has been born.
Kate is five years old. Fiona leaves the Brigadier and takes Kate with her.
(REFERENCE)
Kate fiona spend some time living with Kate's parents in Chichester. Fiona gets tired of her mother blaming their separation on her and moves to her late Uncle Reggie's house in Painswick. (PROSE: My Daddy Fights Monsters)
Kate and Fiona have been living in Painswick for three months. Kate mentions hearing the Brigadier talk about Axons during a phone conversation.
(FLASHBACK)
Kate is picked up from school and taken to her ballet class by the Third Doctor in Bessie, due to her father being busy with UNIT business. This is the first time she meets the Doctor. (PROSE: The Giggle)
(REFERENCE)
1989 Kate and the Brigadier have not seen nor spoken to each other since she was a child. (PROSE: Business Unusual)

UNIT career[[edit source]]

Set in December 2011.
Set on Friday 11th December 2011. Kate visits her father on the night he passed away and later attends his funeral in January 2012.
Set during Christmas-time. Kate recruits Osgood as her scientific advisor.
Kate meets the Doctor for the first time, in his eleventh incarnation.
Set about "a year or two" before the events of The Day of the Doctor in roughly 2012, according to the behind the scenes extras. Kate is referred to as "Doctor Stewart" and Osgood is her personal assistant.

Extinction[[edit source]]

Set between The Power of Three and The Day of the Doctor. [1]

Shutdown[[edit source]]

Silenced[[edit source]]

Assembled[[edit source]]

Encounters[[edit source]]

Cyber-Reality[[edit source]]

Set directly after False Negative. A few months have passed since The Dalek Transaction.
Set shortly after Game Theory.
Set directly after Telepresence.
Set directly after Code Silver.

Revisitations[[edit source]]

Set directly after Master of Worlds.

Incursions[[edit source]]

Osgood creates a crude chronon wave tracker and the Doctor later perfects this device, and leaves it for UNIT should they ever need to use it again, setting this before The Power of River Song.
UNIT have a fully functioning chronon wave tracker, setting this after The Sacrifice of Jo Grant. Kate meets River Song for the first time.

Operation Double[[edit source]]

Kate summons the Eleventh Doctor and Clara to investigate the mystery at the Under-Gallery. There is a photo of Kate with River Song in the Black Archive, setting this after The Power of River Song.
Osgood is mentioned to have started wearing a bowtie but has not met the Twelfth Doctor, placing this story before she meets him in Death in Heaven.
Kate encounters Missy for the first time, who kills one of the Osgoods.

Working without Osgood[[edit source]]

Set in Summer 2015, before The Magician's Apprentice.
Kate now has Jac as her scientific advisor.

Operation Double Part Two[[edit source]]

Set two years after The Day of the Doctor.
Set directly after The Zygon Invasion. Osgood returns to Kate at UNIT with her new double.
Set in September 2015. There are two Osgoods working for UNIT, setting this after The Zygon Inversion.
Set in March of an unspecified year. There are two Osgoods and UNIT have lost one before, setting this after The Zygon Inversion.
Kate, Osgood, and UNIT investigate the spaceship crash at St Luke's University during the Doctor's time with Bill.
Kate and Bill are already familiar with each other, placing this after The Lost Dimension.

Vulpreen invasion[[edit source]]

Kate recalls her encounter with Missy, setting this after Death in Heaven.
Kate recalls the events of The Day of the Doctor.
Three months have passed since UNIT took the Eleven into custody in The Curator's Gambit.
Jacqui McGee dies saving Kate from the Vulpreen, setting this after Narcissus.

Defunded[[edit source]]

In 2017, Kate meets with Prentis to discuss his decision to accept the withdrawal of funding for UNIT. Figuring out that he is an extraterrestrial threat, she opposes him. After narrowly escaping an assassination attempt, Kate is forced to go on the run.
Kate attends Sarah Jane's funeral.
In August 2020, Kate investigates the Time Fracture. She mentions that she is the former chief of operations at UNIT.
On 5 December 2021, Kate meets the Thirteenth Doctor for the first time while leading the resistance force against the Sontaran occupation.
In 2022, Kate is running "what's left" of UNIT during the redacted crisis. The redaction has caused her to forget about the Doctor temporarily.

Return of UNIT[[edit source]]

In 2022, UNIT has established a new UNIT HQ in the City of London and is enlisting the assistance of the Doctor's former companions. As commanding officer, Kate assists the Thirteenth Doctor in thwarting the Master's Dalek Plan, though the incident results in the destruction of the new headquarters. Kate travels aboard the Doctor's TARDIS for the first time.
In 2023, Kate aids the Fourteenth Doctor in defeating The Toymaker. Her scientific advisor is Shirley Anne Bingham and Melanie Bush also works for UNIT. She is now based at a new UNIT tower.
In 2024, Kate aids the Fifteenth Doctor in investigating Triad Technology and meets Ruby Sunday for the first time. Morris Gibbons is UNIT's scientific advisor and her team also consists of Melanie Bush, Rose Noble and Cristofer Ibrahim. Ending leads directly into Empire of Death.
After defeating Sutekh, Kate offers Susan Triad a job at UNIT.
In an alternate version of 2025, Kate attempts to help Ruby Sunday following the Doctor's disappearance. However she abandons Ruby after an encounter with the entity following her. These events are erased from the timeline.

Unplaced[[edit source]]

  • TV: The Star Beast [+]Loading...["The Star Beast (TV story)"]
Kate sets up sheltered accommodation for Wilfred Mott.


  1. ↑ https://www.bigfinish.com/vortex/pdf/81
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