Siobhán McSweeney (born 27 December 1979) is an Irish actress and presenter. She is best known for her role as Sister Michael in Derry Girls. McSweeney was born in County Cork, Ireland where she grew up in Aherla. Before acting, she earned a science degree at the University College Cork. In 2001, she moved to London when she secured a place at the Central School of Speech and Drama.

Filmography

• 2026Madfabulous — Blanche
• 2026National Theatre Live: The Playboy of the Western World — Widow Quin
• The Dickie Show
• Amandaland — Della
• Nine Bodies in a Mexican Morgue — Lisa Davies
• Maddie + Triggs — Narrator (voice)
• 2024Spud — Spud, Director, Executive Producer
• Extraordinary — Mary
• Holding — as Bríd Riordan
• Redemption — Jane Connolly
• 2021Happy Days — Winnie
• 2021The Electrical Life of Louis Wain — Dr Cooke
• 2020Anthony — Luighsearch Kelly
• 2020Nowhere Special — Pam
• 2020Scrubber — Scrubber
• 2020The Widow — Eileen
• 2019Extra Ordinary — Boring Noreen
• Celebrity Catchphrase
• Derry Girls — Sister Michael
• Porters — Alice
• 2016Alice Through the Looking Glass — Witzender
• No Offence — Ruth Cheetham
• London Irish — Aoife
• The Fall — Mary McCurdy
• 2006The Wind That Shakes the Barley — Julia (uncredited)

Appearances as themselves (11)

• Celebrity Sabotage — Self - Narrator (voice)
• The Traitors Ireland — Self - Host
• The Traitors Ireland Uncloaked — Self - Guest
• 2022Brian Friel: Shy Man, Showman — Self
• Exploring Northern Ireland With Siobhán McSweeney — Self - Presenter
• Tom Allen’s Quizness — Self
• RuPaul's Drag Race UK — Self - Guest Judge
• The Great British Bake Off: An Extra Slice — Self
• The Great Pottery Throw Down — Self - Host
• The Graham Norton Show — Self
• The Late Late Show — Self - Guest