Fiona is the daughter of Irish comedian Brendan O'Carroll. Fiona isn't only a very talented actress, when she was age 10 she had a top ten single "Bitten By the Bug". She studied film and production at DLIAT. Fiona is now married to the producer Martin Delany and they have 4 young sons together.

Filmography

• 2024They Can't Know About Me
• 2023Mrs. Brown's Boys New Year Special – New Year, New Mammy — Maria Brown
• 2020Kings of Broadway 2020: A Celebration of the Music of Jule Styne, Jerry Herman, and Stephen Sondheim
• All Round to Mrs. Brown's — Maria Brown
• 2015Mrs. Brown's Boys Live Tour: How Now Mrs. Brown Cow — Maria Brown
• 2014Mrs. Brown's Boys D'Movie — Maria Brown
• 2013Mrs. Brown's Boys Live Tour: Mrs. Brown Rides Again — Maria Brown, Executive Producer
• 2012Mrs. Brown's Boys Live Tour: Good Mourning Mrs. Brown — Maria Brown, Trevor Brown
• Mrs Brown's Boys — Maria Brown
• 2010Mrs. Brown's Bloomers
• Mrs. Brown's Boys - The Original Series — Maria Brown
• 2003Mrs. Brown's Boys: The Last Wedding - Part 2 — Maria Nicholson, Producer
• 2002Mrs. Brown's Boys: The Last Wedding - Part 1 — Maria Nicholson, Producer
• 1994Brendan O'Carroll: How's Your Snowballs — Producer
• Mrs. Brown's Boys: Crackin' Christmas — Maria Brown

Appearances as themselves (1)

• Celebrity Mastermind — Self - Contestant