Saoirse-Monica Jackson Erin Quinn Actor Louisa Harland Orla McCool Actor Ian McElhinney Granda Joe Actor Kathy Kiera Clarke Aunt Sarah Actor Nicola Coughlan Clare Devlin Actor Jamie-Lee O'Donnell Michelle Mallon Actor Dylan Llewellyn James Maguire Actor Tara Lynne O'Neill Ma Mary Actor Siobhan McSweeney Sister Michael Actor Jamie Beamish Ciaran Actor Tommy Tiernan Da Gerry Actor Kevin McAleer Uncle Colm Actor Claire Rafferty Miss Mooney Actor Leah O'Rourke Jenny Joyce Actor Beccy Henderson Aisling Actor Art Campion Father Peter Actor Amelia Crowley Deirdre Mallon Actor Philippa Dunne Geraldine Devlin Actor Donna Traynor Donna Traynor Actor Vanessa Ifediora Laurie Actor Lisa McGee Writer, Executive Producer Michael Lennox Director Caroline Leddy Executive Producer Noel Hogan Music Brian J. Falconer Producer Liz Lewin Executive Producer Jimmy Mulville Executive Producer