Jamie-Lee O'Donnell is an actress known for her role as Michelle Mallon in Channel 4’s comedy series, Derry Girls. O’Donnell was born on 4 March 1987 in Derry, Northern Ireland.

She attended St Anne's Primary School, St Cecilia's College, and North West Regional College. She began acting at a young age in school plays. Upon graduation, she decided to pursue it professionally despite not being able to afford drama school.