Guest Stars Johnny Carr as Kevin "Simmo" Fitzsimmons Kate Jenkinson as Melanie Best Rodger Corser as Stuart Wendell Ingrid Torelli as Mia Chigwell-Bourke Josh McKenzie as Xavier Freya Stafford as Midwife Shauna Patrick Williams as Anaesthetist Fiona MacLeod as Dr Newell Sara Cooper as Midwife 1 Bethany Whitmore as Olivia Rosanna Sciulli as Midwife 2 Kylie Wallace as Midwife 3 Nathaniel McHugh as Paediatrician Amrit Basra as Junior Obstetrician