Biography
Louisa Clare Harland is an Irish actress best known for her role as Orla McCool in the Channel 4 sitcom Derry Girls and the titular character of the Disney+ series Renegade Nell.
Brought up in Dundrum, South Dublin, Harland has two older sisters, Katie and Ellie. She was part of the Ann Kavanagh Youth Theatre in Rathfarnham. She trained at the Mountview Academy of Theatre Arts in London.
Upon graduation, Harland landed a recurring role as Kayleigh in season two of the RTÉ One series Love/Hate in 2011. She later appeared in films Rob Burke's Standby (2014) and Woody Harrelson's Lost in London (2017).
In 2017, it was announced Harland had been cast as Orla McCool, the eccentric cousin of Erin Quinn (Saoirse-Monica Jackson), in the Channel 4 sitcom Derry Girls. The first series aired in January 2018, receiving critical and commercial acclaim, and the second in March 2019. A final third series, as well as a special, aired in 2022.
Filmography
Cast Credits

The Walsh Sisters
Character: Anna Walsh
TV • 2025

Odd Socks
Character: McBride (voice)
MOVIE • 2025

Joy
Character: Rachel
MOVIE • 2024

Renegade Nell
Character: Nell Jackson
TV • 2024

BabyDolls
Character: Barbara
MOVIE • 2022

Boys from County Hell
Character: Claire McCann
MOVIE • 2021
Sunday Tide
Character: Violet
MOVIE • 2018

Derry Girls
Character: Orla McCool
TV • 2018

Lost in London
Character: Stella
MOVIE • 2017

Love/Hate
Character: Kayleigh
TV • 2010