Michael Portillo returns with an authored documentary, that uses British state papers to shed fresh light on key events and personalities during the Civil War period in Ireland.
| Actor | Role |
|---|---|
 Michael PortilloPresenter | Presenter |
| GGretchen FriemannJournalist | Journalist |
| HHeather JonesHistorian | Historian |
| SSinéad McCooleHistorian | Historian |
 Max HastingsJournalist | Journalist |
| MMike CroninHistorian | Historian |
| MMichael LaffanEmeritus Professor, UCD | Emeritus Professor, UCD |
| CCaoimhe Nic DháibhéidHistorian | Historian |
| NNiamh GallagherHistorian | Historian |
| FFearghal McGarryHistorian | Historian |