Yasmin Khan

Yasmin "Yaz" Khan is the main deuteragonist of the Thirteenth Doctor era of the Doctor Who revival series, serving as one of the main deuteragonists of Series 11 and 12 and the main deuteragonist in Series 13: Flux and the 2022 Specials. She is a young police officer in training, who after being confronted with a dangerous Stenza hunter, became the new companion of the time traveling adventurer, The Doctor.
She is portrayed by Mandip Gill.
==Personality==
Yasmin is ambitious, friendly, and pretty sure of herself. She has some rivalry with her sister, Sonya. She does not seem to have much social life because her family describes her as "married to her job".
==Biography==
===Early life===
Yaz was born in Sheffield in 1999 to Hakim and Najia Khan, who later had another daughter named Sonya. In her youth, she went to Redlands Primary where she met Ryan Sinclair but both lost contact after leaving primary school. Due to his Muslim heritage and Pakistan, Yaz has often been the victim of sometimes racist mockery. Yaz was also bullied by Izzy Flint, who left Yaz feeling afraid for a whole year. 
When things got particularly difficult, to the extent that it affected her grades at school, Yaz ran away from home feeling that her parents did not understand her problems. Convinced that she was "going to do something stupid", Sonya reported her missing. Yaz was found on the moors by PC Anita Patel, who convinced her to face her problems by offering her a compromise: "Moments change. Look me up in three years. If I'm wrong, I'll give you 50 quid. But if I'm right, you owe me 50p". In 2016, Yaz joined the Hallamshire Police as a subordinate officer.
===Series 11===
In 2018, Yaz was often sent by her superior, Ramesh Sunder, to deal with small-time petty disputes. After vocalising her need for something more, she was sent to investigate an unidentified object found by someone. Yaz arrived at the scene and discovered that the person who discovered the object was Ryan.Ryan insisted the call was not a prank and, though Yasmin didn't initially believe him, touching the cold object led to her doing so. The pair along with Ryan's grandmother Grace and step-grandfather Graham O'Brien met the Thirteenth Doctor and aided her in defeating a Stenza named Tzim-Sha, whose pod was the object Ryan had discovered, though Grace died in the process. After attending Grace's funeral, Yaz later helped the Doctor construct a teleporter to get her to her TARDIS. Though they meant to stay whilst she left, Yasmin, Ryan and Graham were also teleported into deep space with her.
They found the Doctor's TARDIS, and after several attempts to return, including an encounter with Rosa Parks, they arrived in 2018 Sheffield. After defeating a batch of mutated spiders, Yaz, and the others elected to properly travel with the Doctor, becoming Team TARDIS. 
In Demons of the Punjab, while at her grandmother Umbreen's birthday, Yaz was told by Umbreen she was her favourite granddaughter, and gave Yaz her old watch with a shattered face. Yaz was left curious at the stories behind it, and asked the Doctor if they could visit Umbreen in her youth. With the watch used as a guide, they arrived in India 1947, during the Partition, rather than 1950's Lahore as Yaz expected. There they met Prem, who offered to take Yaz and the rest of Team TARDIS to Umbreen's house. Upon arriving at Umbreen's house, Yaz claimed to be a distant relative. However, she was shocked to learn that Umbreen was engaged to Prem, who was the grandfather she was aware of. Prem was also Hindu, whereas all of Yaz's family were Muslim. Realising she might not know her nani as well as she thought, Graham comforted her.
Yaz received henna art from her great-grandmother Hasna and spent the night before Umbreen's wedding with them and the Doctor. The following morning, she witnessed her grandmother marry Prem at the Pakistani border with India. Later, she witnessed how Prem gave Umbreen his watch, the face shattering when he dropped it as he passed it over. When the Doctor realised that Prem's brother Manish was a murderer who opposed the marriage, Yaz helped Umbreen flee to Lahore having to leave Prem behind to die, and found a map of Sheffield among her possessions. After discussing her future with the Doctor, Yaz returned home to Umbreen in 2018 again, now knowing how she lost her first love. Yaz asked her if she was happy with her life and Yaz's grandfather; Umbreen said she was and expressed her love for Sheffield. Offering to tell Yaz the story of the watch, Yaz declined as she knew how much pain it had caused Umbreen. The two affirmed their love for each other once more.
In the 2019 New Year special "Resolution", Yaz aides The Doctor in defeating a lone scout Dalek.
=== Series 12 ===
After asking her superior officer for more time off to continue her travels, in Spyfall, Yaz was picked up by agents of MI6, along with the Doctor, Ryan and Graham. They found themselves investigating attacks on spies by mysterious beings. The group infiltrated the operations of Daniel Barton, Yaz and Ryan posing as a reporting duo. During their investigation, Yaz was attacked by one of the Kasaavin, winding up trapped in their dimension, before she wound up in Australia with the Doctor, a trapped Kassavin having swapped places with her. There she met the Doctor's old MI6 friend Agent "O", who mildly flirted with her. After the group had confronted Barton at his birthday party and stolen his private jet, O revealed himself to be the Master, another Time Lord and an old enemy of the Doctor's. After summoning two Kasaavin to take the Doctor away, the Master teleported away and left the humans to die. 
Before the plane crashed however, a recording of the Doctor appeared and told them how to get to safety. Back on the ground, the trio found that they were marked as wanted criminals by Barton and were forced to go on the run. The trio eventually tracked Barton down to a warehouse where they learnt his scheme was to turn humanity into hard drives. As the Master arrived to gloat, the Doctor revealed that, through the Master's TARDIS, she had sabotaged the plan, leaving the Master to be taken prisoner by the Kasaavin. Back aboard the TARDIS, the companions requested that the Doctor say who she really was with her giving them the barest of details on her past. 
Yaz continues to travel with The Doctor, Ryan and Graham. In The Timeless Children, during The Doctor's confrontation with The Master on Galifrey, she sends Yaz, Ryan and Graham back to Earth on another Tardis.
At the end of the 2021 New Year special Revolution of the Daleks, which takes place ten months after The Timeless Children, Yaz has been trying to find The Doctor. Eventually, The Doctor arrives with her old friend Captain Jack Harkness and reveals that she that the reason for her absence was due to her being imprisoned. After aiding The Doctor in defeating Earth from Daleks, Yaz decides to continue traveling with her whilst Ryan and Graham decide to return to their normal lives.
===Series 13===
The Doctor told Yaz she needed to "see a man about a dog" and refused to elaborate. The man turned out to be Karvanista who trapped them both hanging over an acid sea. They escaped and made it back to the TARDIS, heading to Earth to discover what Karvanista had meant by mentioning Earth's "final hours". Tracing him to Liverpool on the 31st of October 2021 Yaz and the Doctor discovered he'd kidnapped Dan Lewis and briefly encountered Claire Brown. Reaching Karvanista's ship, they split up with the Doctor telling her to find Dan. Yaz set him free and went to find the Doctor, however Dan being free enraged Karvanista who forced them all to flee in the TARDIS. The Doctor took them to investigate the Flux, landing the TARDIS on the edge of Earth's solar system as it approached, only for the Flux to turn target the ship. 
After the Doctor unleashed vortex energy on the Flux moments before it could engulf the TARDIS, the collision of energies sent the ship and its crew through time to the Crimea in 1855. After briefly meeting Mary Seacole, Yaz and Dan suddenly continued falling through time with the Doctor promising to find them. Yaz found herself in the Temple of Atropos and encountered a Priest Triangle demanding to know if she could repair. Playing along, she followed it to the Mouri and met Inston-Vee Vinder who was similary confused by where they were. Swarm, Azure, and a Passenger form arrived and forced Yaz and Vinder to cooperate. Swarm killed two Mouri in addition to the two already broken and put Yaz and Vinder in their places. He revealed what he'd done to the Doctor when she arrived looking for Yaz and prepared to expose her and Vinder to the full force of time, wondering how long they'd last.
The Doctor saved them by taking the place of a broken Mouri herself and taking the force of time upon herself, hiding Yaz in her own time stream. Yaz was disturbed by inconsistencies in her time stream and was attacked by a Weeping Angel. When the Mouri retook their positions with the Doctor's help, Yaz was returned to the Temple. After Swarm and Azure departed, they returned to the TARDIS with Vinder and dropped him off on his ruined home planet. Now with just herself, Dan, and the Doctor in the TARDIS, the Thirteenth Doctor sent a distress call about the arrival of the Flux. A little later, Yaz checked her phone in the control room and was shocked when the Weeping Angel emerged from it, seizing control of the TARDIS.
After the Doctor rebooted the TARDIS to get rid of the Weeping Angel, she, Yaz and Dan arrived in Medderton on 21 November 1967. Whilst helping to look for a missing girl named Peggy, Yaz and Dan were touched by another Weeping Angel which sent them back in time to Medderton in 1901. They found Peggy who led them to an energy barrier showing what was happening in 1967. They were joined in 1901 by Professor Eustacius Jericho after he was caught by an Angel and witnessed the Doctor being surrounded by Weeping Angels in 1967. As the Doctor was turned into an Angel after being recalled to the Division, Dan had to stop Yaz from attempting to go to her aid through the energy barrier, as doing so would have resulted in her death.
Yaz, Dan and Jericho spent three years in the 1900s following instructions from the Doctor, who had left a holographic message in Yaz's pocket in case they were separated, to find clues to a potential coming battle for Earth. In 1904 they learnt the date of the future event was 5 December and consulted a seer for further details, who advised them to "fetch their dog". Taking that as a clue to contact Karvanista they travelled to the Great Wall of China where they painted a message large enough for the Lupar to see from space in 2021, asking him to come rescue Dan. 
Aboard a ship leaving China, they were attacked by a man, who committed suicide rather than be interrogated by them, and encountered Joseph Williamson briefly, who Yaz had previously met at the Temple of Atropos. Realising Williamson's tunnels might be a way of moving through time, they travelled to Liverpool and entered them, finding Williamson again who explained his tunnels went throughout history. To their shock, a group of Sontarans suddenly invaded the Tunnels.
Yaz dealt with the Sontarans by opening a door Williamson claimed led to "death" and they followed a door to 5 December 2021. There they met Kate Stewart and were reunited with the Doctor, who was currently split into three aspects. Yaz helped the Doctor carry out a plan to infiltrate Sontaran command and assisted as she turned their plan against them to stop a second Flux event. Afterwards, she and the Doctor invited Dan to join them full-time and the Doctor promised to be more open with Yaz.
===2022 Specials===
====Eve of the Daleks====
After the Doctor began the TARDIS's reset process to repair damage caused by the Flux, Yaz along with the Doctor and Dan found themselves in ELF Storage on New Year's Eve 2021 and encountered a Dalek Executioner who exterminated them. They were resurrected when the TARDIS created a time loop and worked with bystanders Sarah and Nick to destroy the Daleks using explosives being stored there, dying and being resurrected numerous times in the process, during which Yaz confirmed to Dan that she had romantic feelings for the Doctor. She also admitted that she hadn't told anyone about her sexuality, or even admitted it to herself yet. Dan said that her feelings for the Doctor were obvious from how she acted.
==Trivia==
* Fans believe Yaz was instrumental in helping the Thirteenth Doctor adjust to her gender. The Doctor's past incarnations had all been men for over 2000 years, so the change of gender would trip her up; seeing as the Thirteenth kept flubbing in their early adventures.
* Yaz mentioned how a student made her life a living hell for a year at school in The Witchfinders. With the revelation of Yaz's sexuality in the 2022 New Years Special, it's more than likely Yaz hid her preference for women after said student discovered it.
*The best takeaway Yaz got from traveling with the Doctor was gaining the courage to admit to herself that she was a lesbian. Yaz loved the Doctor, but she realized her feelings too late; the Doctor knew she would soon regenerate, so Yaz was let down gently. It would lead to heartbreak for Yaz if the next Doctor was incompatible due to gender or orientation.
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