Mrs Brown's Boys Happy 50th Birthday Card Mrs Brown's Boys has proved a worldwide smash and only goes to show when the times get tough, the tough get laughing. This is a certainty with the Mrs Brown character played by Brendan O'Carroll. The card says "You're 50 Today And Still Looking Great ... For A Feckin' OLD Person! Happy 50th Birthday." There is still lots of space to write your own personal message as well..