Katy Fox is a fictional character from the British Channel 4 soap opera Hollyoaks, played by Hannah Tointon, from 2007 to 2008 and again in 2017.

In July 2016, after Warren returned to the village, he revealed that Katy had died from a drug overdose and that he felt immensely guilty as he was in prison at the time of her death.

The character made a return on 1 February 2017, where it was revealed that Katy's nephew Joel Dexter (Rory Douglas-Speed) and his friend Bart McQueen (Jonny Clarke) supplied her with the drugs, leading to her death.

Katy was created by Bryan Kirkwood as a sister of an existing character, Warren Fox (Jamie Lomas).

"[1] Katy Fox died of a drug overdose off-screen to facilitate a storyline involving Warren which aired in 2016.

[2] Katy was first mentioned by her older brother, Warren Fox (Jamie Lomas) while having a conversation with Justin Burton (Chris Fountain).

After Warren's release from prison, she decides to enroll at Hollyoaks Community College instead of going away to university in London, as this would allow her to spend more time with her boyfriend and brother.

After Clare leaves Hollyoaks, Warren decides to have a party, and Katy goes back to the flat to change, only to find someone already there.

She was shown to be frightened in her sleep and even after a visit from Max who begged her not to let Clare ruin another life, it took her time to recover.

But Katy felt she was no longer able to trust Justin after the events of the kidnapping and also because he let Warren take the fall for his crime, resulting in her telling him things were over between them when he tried getting her to talk to him by setting up a romantic meal.

Katy applied to study law at Hollyoaks Community College but was shocked to discover her name was not on the class register.

Eventually Katy was able to secure her place on the course with the help of Louise who threatened to tell the enrollment officer's boss about his inappropriate activities on the job.

She was late when she couldn't find one of her books and then walked into John Paul McQueen (James Sutton), spilling water all over herself.

However, after returning from the toilet she walked in on Justin attempting to break up one of the numerous fights that had broken out, this one between John Paul and Nancy.

Katy had another brush with death when she decided to attend John Paul's house warming and Kris Fisher's (Gerard McCarthy) welcome back party, and ended up being one of the many people who became unconscious due to carbon monoxide poisoning.

When Justin told Katy he was going to help Nancy fight for custody of Charlie, she talked him out of it telling him that the court would bring up everything that happened between him and Becca.

Katy has been getting closer to housemate Zak Ramsey over the past few weeks after Justin becoming more distant and more involved over Charlie.

In an episode on Friday 22 February 2008 Zak and Katy had a shopping trolley race and had much fun, afterwards they kissed.

On Thursday 10 April 2008, Katy decided she was going to leave Hollyoaks Village for good, and as she was waiting for her taxi, Justin stopped her.

On 22 July 2016, Warren tells Sienna Blake (Anna Passey) that Katy recently died of a drug overdose.

On 1 February 2017, it was revealed via recorded video footage that both Joel Dexter and Bart McQueen were involved in supplying the drugs that caused Katy to overdose.