Northern Ireland, 1969: The Westmoreland Light Infantry is posted to Belfast, along with Major Harry Lightoller and his wife Claire.
| Actor | Role |
|---|---|
 Daniel MasseyMajor Harry Lightoller | Major Harry Lightoller |
| AAnn BellClaire Lightoller | Claire Lightoller |
 Edward HardwickeLieut. Colonel Rusper | Lieut. Colonel Rusper |
| CClement McCallinEdwin Considine | Edwin Considine |
 Barry QuinFrancis Considine | Francis Considine |
 Selina CadellSally Considine | Sally Considine |
 Maurice O'ConnellChief Inspector Seward | Chief Inspector Seward |
| MMark AllingtonRopner | Ropner |
 Martin WimbushCaptain Victor Isitt | Captain Victor Isitt |
| JJames HayesSpelman | Spelman |
 Mollie MaureenBrigid | Brigid |
| TTony ThenLim Soun | Lim Soun |