Brendan O'Carroll Agnes Brown Creator, Actor, Writer Paddy Houlihan Dermot Brown Actor Jennifer Gibney Cathy Brown Actor Rory Cowan Rory Brown Actor Eilish O'Carroll Winnie McGoogan Actor Danny O'Carroll Buster Brady Actor Dermot O'Neill Grandad Brown Actor Amanda Woods Betty Brown Actor Fiona O'Carroll Maria Nicholson Actor Sorcha Cusack Hilary Nicholson Actor Joe Conlan Plumber Actor Emily Regan Barbara Actor Gary Lilburn Father Quinn Actor Helen Spain Widow Murphy Actor Gary Hollywood Dino Doyle Actor Ben Kellett Director Stephen McCrum Producer Mark Freeland Executive Producer