Paddy's probably the poorest boy in Frank's class. He lives in filthy conditions and is usually full of scabs and bruises because he has to fight his siblings for his clothes. Eventually Paddy moves to England where he's able to live a better life.
Brendan Quigley's always asking questions, which is why the boys call him Question Quigley. He's always getting in trouble for asking questions since all of the teachers (except for Mr. O'Halloran) hate it when the students ask questions.