Father Peter

Father Peter turns up as one of the clergy hovering around the girls' Catholic school life in Derry, the sort of mild, well-meaning priest who presides over assemblies and retreats without ever quite being in on the joke. He behaves with polite, slightly baffled authority, more spectator than disciplinarian.

Derry Girls gets a lot of comic mileage from earnest religious figures colliding with teenage chaos, and Art Campion plays the type with a gentle, unbothered calm that makes him a nice counterweight to the girls' hysteria. He's a small, dependable dose of deadpan amid the noise.