She is known for co-writing and starring in the RTÉ comedy The Walshes, as well as her roles as Anne Flynn in Motherland and its spin-off Amandaland, Geraldine Devlin in Derry Girls and Ria in This Is Going to Hurt.
[3][4] She made her acting and writing debut in the television film Dublin Stories and appeared in two episodes of Rental Boys.
[6][7][8] Since 2016, Dunne has portrayed Anne Flynn in the BBC Two comedy Motherland, appearing in all 19 episodes.
[11][12] Dunne was then cast in the BBC One medical comedy-drama series This Is Going to Hurt as Ria, the receptionist.
[14] She also appeared as a contestant on Celebrity Mastermind, with her specialist subject being the 1980 Stanley Kubrick film The Shining.