<P> Katy Armstrong is a fictional character from the British ITV soap opera , Coronation Street , played by Georgia May Foote . She made her first screen appearance during the episode broadcast on 30 July 2010 . Foote had previously appeared in the soap in January that same year as Jess Burrows . Katy is Owen Armstrong 's ( Ian Puleston - Davies ) youngest daughter and Izzy Armstrong 's ( Cherylee Houston ) sister . Her storylines have mostly revolved around her relationship with Chesney Brown ( Sam Aston ) , becoming a mother to their son , Joseph and beginning an affair with Ryan Connor ( Sol Heras ) . Foote 's departure from the show was announced in April 2014 , with her having filmed her final scenes on 16 February 2015 and departed on 20 March 2015 . Katy was killed off - screen in a car accident on 18 October 2017 . </P>
<P> Katy Armstrong is a fictional character from the British ITV soap opera , Coronation Street , played by Georgia May Foote . She made her first screen appearance during the episode broadcast on 30 July 2010 . Foote had previously appeared in the soap in January that same year as Jess Burrows . Katy is Owen Armstrong 's ( Ian Puleston - Davies ) youngest daughter and Izzy Armstrong 's ( Cherylee Houston ) sister . Her storylines have mostly revolved around her relationship with Chesney Brown ( Sam Aston ) , becoming a mother to their son , Joseph and beginning an affair with Ryan Connor ( Sol Heras ) . Foote 's departure from the show was announced in April 2014 , with her having filmed her final scenes on 16 February 2015 and departed on 20 March 2015 . Katy was killed off - screen in a car accident on 18 October 2017 . </P>
who plays izzy 's mum in coronation street
who plays izzy 's mum in coronation street
Katy Armstrong Georgia May Foote
Katy Armstrong Georgia May Foote