Guest Stars Blake Johnston-Miller as Jemmy MacKenzie Izzy Meikle-Small as Rachel Hunter Joey Phillips as Dr. Denzell Hunter Diarmaid Murtagh as William "Buck" MacKenzie Chris Fulton as Rob Cameron Ben Lambert as Captain Richardson Angus Macfadyen as Brigadier General Simon Fraser Barry O'Connor as Colonel Daniel Morgan Tobi Bakare as Walter Woodcock Henry Ashton as Sandy Hammond Bradley Connell as Tommy Wellman Emma Hindle as Mrs. Wellman Gemma McElhinney as Mrs. Raven Michael Barker as Private Caroline McKeown as Young Mother Kevin Lennon as Lionel Menzies Josh Morrison as Bobby Hurragh Fiona Knowles as Mrs. Stewart
