Guest Stars Julie Graham as Lou Harkness Nicholas Nunn as Adam Muller Sophie Willan as Maeve Wiley Matilda Firth as Nancy O'Riordan Kayla Meikle as Donna Mills Louise Lee as PO Carter Brody Griffiths as Callum O'Riordan Alicia Forde as Sarah Duddy Isaac Lancel-Watkinson as Kyle O'Riordan Lisa Millett as PO Martin Conor McCarry voices Steven Harkness Jackie Jones as Social Worker Danielle Henry as Tess Palmer Terri Reddin as Sonographer Alexandra Monaghan as Tash Karen Henthorn as Elizabeth O'Riordan Angela Wynter as May Sinclair Maimuna Memon as Tahani Stephen Whitfield as Chairperson Cindy Humphrey as Faith Philip Hill-Pearson as Orla's Bar Boss Louise Willoughby as Hospice Nurse