Name	Known for
Brendan O'Carroll Agnes Brown Agnes Brown See fewer	Mrs. Brown's Boys (2011)
Dermot O'Neill Grandad Brown Grandad Brown See fewer	Mrs. Brown's Boys: The Original Series (2002)
Jennifer Gibney Cathy Brown Cathy Brown See fewer	Mrs. Brown's Boys (2011)
Damien Mckiernan Rory Brown Rory Brown See fewer	Mrs. Brown's Boys (2011)
Gary Hollywood Dino Doyle Dino Doyle See fewer	Mrs. Brown's Boys: The Original Series (2002)
Eilish O'Carroll Winnie McGoogan Winnie McGoogan See fewer	Mrs. Brown's Boys D'Movie (2014)
Derek Reddin Dr. Flynn Dr. Flynn See fewer	Mrs. Brown's Boys (2011)
Paddy Houlihan Dermot Brown Dermot Brown See fewer	Mrs. Brown's Boys D'Movie (2014)
Danny O'Carroll Buster Brady Buster Brady See fewer	Mrs. Brown's Boys D'Movie (2014)
Fiona Gibney Sharon McGoogan Sharon McGoogan See fewer	Mrs. Brown's Boys (2011)
Conor Gibney Garda Kingston Garda Kingston See fewer	For Facts Sake (2018)
Sue Vincent Peggy Piper Peggy Piper See fewer	The Madame Blanc Mysteries (2021)
Amanda Woods Betty Brown Betty Brown See fewer	Mrs. Brown's Boys D'Movie (2014)
Pat Shields Mark Brown (as Pat 'Pepsi' Shields) Mark Brown (as Pat 'Pepsi' Shields) See fewer	Mrs. Brown's Boys D'Movie (2014)
Conor Moloney Father Damien Father Damien See fewer	The Guard (2011)
Blake O'Carroll Blister Blister See fewer	Mrs. Brown's Boys (2011)
Emily Regan Barbara Barbara See fewer	Mrs. Brown's Boys: The Original Series (2002)
Mike Nolan Mr. Foley Mr. Foley See fewer	Mrs. Brown's Boys: The Original Series (2002)
Pete Price Radio DJ (as Peter Price) Radio DJ (as Peter Price) See fewer	No Surrender (1985)