Yasmin Khan

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

As a child, Yasmin attended Redlands Primary alongside Ryan Sinclair. Years later, she joined Hallamshire Police as a junior officer. 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 countryside outside Sheffield. There, Yaz reencountered Ryan Sinclair. Though she didn't initially believe him, the properties of the 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 Doctor for the first time. Yasmin, along with Ryan, Grace and the latter's husband Graham O'Brien, would help the Doctor investigate and stop the pods occupant from claiming a person as a trophy. After Grace died while disabling the coil, Yasmin attended her funeral.

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