[3] In 2009, Harris adapted Leo Tolstoy's The Kreutzer Sonata, creating a one-act monologue for the Gate Theatre in Dublin, which was then also presented in New York City in 2012.
In December 2017, the Gate Theatre presented Harris' unique spin on a classic fairytale, about the challenges of reimagining The Red Shoes for a new generation.
[8] Harris wrote the stage musical adaptation of The Magician's Elephant (based on Kate DiCamillo's novel) with Marc Teitler for the Royal Shakespeare Company Having been delayed a year due to the Covid-19 pandemic, it was rescheduled to premiere in winter 2021.
On television, she was BAFTA nominated for her episodes of the Channel 4 series Dates and contributed scripts for Secret Diary of a Call Girl, The Good Karma Hospital and the epic miniseries Troy: Fall of a City.
[10] Her play The Beacon is slated to open in fall 2024 as an Off-Broadway production by the Irish Repertory Theatre with actress Kate Mulgrew in the lead.