Guest Stars Aislín McGuckin as Denise Frank Blake as Alan Leah McNamara as Rachel Éanna Hardwicke as Rob Niamh Lynch as Karen Meadhbh Maxwell as Lisa Seán Doyle as Eric Killian Filan as Jack Clinton Liberty as Kiernan Liz Fitzgibbon as Ms. Neary Muiris Crowley as Mr. Kerrigan