Guest Stars Orla Charlton as Deirdre McGuire Mae Higgins as Young Fia Jade Jordan as Donna Walsh Lisa Hogg as Emma Riley Barry McGovern as Dr. James Whelan Andrew Bennett as Donal Riley Seán T. Ó Meallaigh as Jack Lucey Lloyd Hutchinson as Supt. Shanahan Hannah James-Scott as DG Angela Webster Rebecca Hanssen as Carrie Hurley Ally Ní Chiaráin as Sandra Riley Brendan Conroy as Fergus Slattery Ingrid Craigie as Marjorie Whelan Natalie Radmall-Quirke as Serena Reid Youssef Quinn as DG Luke Gannon Senan Jennings as Aidan Lucey Gerard Meehan as Shane Furlong Siobhán O'Kelly as Elizabeth Lucey Clara Fitzgerald as Róisín Hurley Finlay Boylan as Mark Furlong
