Guest Stars Aislín McGuckin as Denise Desmond Eastwood as Niall Eliot Salt as Joanna India Mullen as Peggy Frank Blake as Alan Éanna Hardwicke as Rob Fionn O'Shea as Jamie Liz Fitzgibbon as Ms. Neary Aoife Hinds as Helen Kwaku Fortune as Philip Slaney Power as Sophie Frank Smith as Provost