Brendan O'Carroll as Mrs. Brown is brilliant is this series. I have seen all 6 episodes and have laughed so much I actually stopped breathing for a bit in one of the episodes. You will see many of the other characters trying to stifle laughs as I am sure much of Mrs. Brown's lines are unscripted.
Brendan O'Carroll has written several books as well as many films and stage plays.
His wife Jennifer Gibney plays his daughter Cathy Brown. Fiona O'Carroll, his daughter plays "Maria Nicholson" who is the girlfriend of son "Dermot Brown" and his sister "Eilish O'Carroll" plays Mrs. Brown's best friend "Winnie McGoogan." Danny O'Carroll plays Buster Brady but I haven't been able to confirm whether he is related to Brendan.
I hope they will be doing another season as this is one of the best comedies I have seen, if not the best.