Yasmin Khan

PC Yasmin "Yaz" Khan was a junior police officer with Hallamshire Police. She lived in Sheffield.

Early Life
As a child, Yasmin attended Redlands Primary alongside Ryan Sinclair. Years later, she joined Hallamshire Police as a junior officer.

Meeting the Doctor
As a trainee on second-year probation, 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 in the Peaks outside Sheffield. There, Yaz found the caller was Ryan Sinclair, whom she recognised from school. Ryan insisted the call was not a prank and, though Yasmin didn't initially believe him, touching the cold object lead to her doing so.

After Ryan received a call from his grandmother, Grace, Yaz accompanied him to check on her, finding her train under attack from a mysterious creature. There, she encountered the Thirteenth Doctor. Yasmin, along with Ryan, Grace and the latter's husband Graham O'Brien, helped the Doctor investigate and stop the pod's occupant, a Stenza named Tim Shaw, from abducting Karl Wright. After Grace died while disabling the coil, Yasmin attended her funeral.

Yasmin later helped the Doctor construct a teleporter to get her to her TARDIS. Though meant to stay whilst she left, Yasmin, Ryan and Graham were also teleported into deep space with her. (TV: The Woman Who Fell to Earth)

Believing the pair to be bonuses in the Rally of the Twelve Galaxies, Epzo scooped Yasmin and the Doctor out of deep space and transported them aboard his ship - the Cerebos. Yaz awoke in a MediPod, stepping out to find the Doctor preparing to jettison the back of the ship, initiating a speed boost which caused them to crash onto the surface of Desolation.

On Desolation, she found Ryan and Graham, who had been similarly saved by Angstrom, Epzo's rival in what would become the final stage of the rally. The rivals, with the Doctor and her friends in tow, were tasked by Ilin, master of the rally, to race across the planet; the first to reach the finish line at the Ghost Monument would win 3.2 million krin and salvation from planet's hostile surface. The Doctor discovered that the Ghost Monument was, in fact, her TARDIS, phasing in and out of reality. After the Doctor stabilised the TARDIS, Yasmin entered it for the first time and the Doctor started to take them home. (TV: The Ghost Monument)

Personality
Yasmin was ambitious. Although outwardly confident, she wasn't overly so, and was aware that she still had much to learn; she once exclaimed "Isn't every day a learning day?" while attempting to control a crane. Her police experience meant that she was a good negotiator, capable of forming a truce between two opposing civilians. (TV: The Woman Who Fell to Earth)