Guest Stars Blake Johnston-Miller as Jemmy MacKenzie Izzy Meikle-Small as Rachel Hunter Diarmaid Murtagh as William "Buck" MacKenzie Joey Phillips as Dr. Denzell Hunter 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 Emma Hindle as Mrs. Wellman Bradley Connell as Tommy Wellman Gemma McElhinney as Mrs. Raven Caroline McKeown as Young Mother Michael Barker as Private Kevin Lennon as Lionel Menzies Josh Morrison as Bobby Hurragh Fiona Knowles as Mrs. Stewart
