Katherine Devlin

Katherine Devlin is an actress from Northern Ireland. She is known for her role in the BBC One series Blue Lights.

Early life Devlin was born in Cookstown, and grew up in County Tyrone. Her father is a civil engineer, and her mother is an artist. Devlin attended a sixth form college in Donaghmore. She received offers to study psychology at university, but turned them down to pursue drama instead. She took a foundation course at The Lir Academy in Dublin and went on to graduate from the Royal Welsh College of Music & Drama in 2021.

Career Devlin appeared as Siobhan in the 2019 Ulster western film The Dig. She appeared as Natasha in an episode of Vikings.

In 2023, Devlin began portraying Constable Annie Conlon, a rookie police officer in the Belfast-set BBC One series Blue Lights. Devlin has spoken about the series displaying the intricate nature of the history and politics of Northern Ireland to a wider audience. Blue Lights was renewed for a second series, airing April 2024. It was renewed for a third and fourth series in 2024. In January 2026, she was nominated at the IFTA Film & Drama Awards for best supporting actress.

Filmography