Tanya Adeola

Tanya Adeola was a student at Coal Hill Academy. In 2013, (TV: Nightvisiting) when she was eleven years old, (TV: The Coach with the Dragon Tattoo) Tanya was moved up three years at Coal Hill School, (TV: Nightvisiting) or possibly two, (TV: For Tonight We Might Die) due to her "outstanding examination results" and "truly extraordinary academic capability". (TV: Nightvisiting)

When she was fourteen years old, in 2016, she reached sixth form. (TV: For Tonight We Might Die, The Coach with the Dragon Tattoo) Tanya was in the group of students the Twelfth Doctor asked to protect Coal Hill. (TV: For Tonight We Might Die)

Personality
Tanya was intelligent, enough so that she was moved up either two or three academic years. (TV: For Tonight We Might Die, TV: Nightvisiting) She also managed to begin hacking the UNIT database, though this was a work in progress and what she had, she downloaded from Reddit. (TV: The Coach with the Dragon Tattoo)

She proved to be a caring individual, such as when she would look in on her father to make sure he returned home safe from his police work (TV: Nightvisiting) and when she comforted Ram after the death of Rachel. (TV: For Tonight We Might Die, The Coach with the Dragon Tattoo)

History
Tanya was born to Jasper and Vivian Adeola, (TV: Nightvisiting, For Tonight We Might Die) sometime around 2002. (TV: The Coach with the Dragon Tattoo) She had two older brothers – Jarvis and Damon. (TV: Nightvisiting) Tanya's family lived in Flat 15 at  Clarendon House ,  St James's Place, in  London. ( TV :  Nightvisiting )

When Tanya was little, the family went to see the Regimental Horses and Tanya mistook a puddle of horse urine for a regular puddle, she jumped in it shouting "Puddle, puddle!". This event let to her father nick naming her Puddle. (TV: Nightvisiting)

Tanya's father was a policeman. She would look in on him at night, no matter how late it was in order to check that he was okay. This would lead to him checking on her in the same fashion. (TV: Nightvisiting) He passed away from a Stroke in 2014. (TV: The Coach with the Dragon Tattoo, TV: Nightvisiting) Around this time, Tanya attended Coal Hill School. (TV: Nightvisiting)

On  19 July   2013, following outstanding examination results,  Coal Hill School  accepted Tanya's request to move up three years. ( TV :  Nightvisiting ) She struggled making friends at Coal Hill Academy, due to being younger than everyone else. The one student who offered friendship to Tanya initially was April MacLean, though Tanya wasn't entirely happy with being friends with the school's social outcast. She regularly helped Ram Singh with his homework, and in return, he would pay money into her gaming account. During one of their video calls, Tanya was attacked by a Shadow Kin. She managed to defeat it by removing all the shadows from the room. This knowledge would later help her and her friends, along with the Twelfth Doctor and Miss Quill, temporarily defeat Corakinus and the Shadow Kin at the Autumn Prom. (TV: For Tonight We Might Die)

Tanya continued to do video calls with Ram after the prom. She told him about her dad's death and how she coped with it in order to show him that she understood what he was going through after the death of his girlfriend, Rachel. She helped Ram investigate a skin-peeling dragon at Coal Hill. She later witnessed My Armitage being skinned alive by the dragon while trying to protect April, Charlie, and Tanya herself. She watched as Coach Dawson, who had the female dragon fused to his body in he form of a tattoo, was pulled through the space-time rift by the male dragon. (TV: The Coach with the Dragon Tattoo)

On the two year anniversary of her father's death, (TV: The Coach with the Dragon Tattoo) a creature called the Lan Kin came through the rift and took the form of people's dead loved ones. The Lan Kin, in the form of Jasper Adeola, tried to entice Tanya into embracing him and thus allowing the Lan Kin to feed on her grief. She knew that this was not her father, and poisoned the Lan Kin with the anger she felt when her father died. When Miss Quill drove a double decker bus into the trunk of the Lan Kin, it knocked the doppelgänger of Tanya's father out of the window, and in weakened state, the Lan Kin retreated back into the rift. Tanya later reminisced about her father with her mother. (TV: Nightvisiting)