Guest Stars Sean Hughes as Kevin Cheng Seán Duggan as Shane Kinsella Patrick Martins as Luke Byrne DS Mark Huberman as Diarmuid O'Kelly Caoimhe O'Malley as Orla Quinn Bryan Quinn as Dominic Kirby Neill Fleming as Locksmith Callum Smith as Finn Kirby Barbara Bergin as Neighbour Eimear Morrissey as Helen Rooney Brid Ní Chumhaill as Shannon Gormley Stephen Ball as Colin Susie Lamb as Margaret Kirby