The modern history of the Congo, the heart of Africa, is a terrifying tale of appalling brutality: how the greedy and incredibly ruthless King Leopold II of Belgium (1935-1909) turned a vast country into his private estate (1885-1908) and how he plundered the land and raped the bodies and souls of its defenceless inhabitants, causing countless victims; and what exactly is the true impact of this often forgotten story of crime and horror today.
| Actor | Role |
|---|---|
 Don CheadleNarrator (voice) | Narrator (voice) |
| CCiaran ReillyRoger Casement (voice) | Roger Casement (voice) |
 Alfre WoodardIlanga (voice) | Ilanga (voice) |
 Philippe BergeronNot listed | Not listed |
 James CromwellNot listed | Not listed |
| FFrank McCourtNot listed | Not listed |
| AAdam HochschildSelf | Self |
| TTom WrightAdditional Narration | Additional Narration |
| AAnnick DeVilleSelf | Self |
| JJean-Pierre BembaSelf | Self |
| JJames NewmanSelf | Self |
| MMbaya MpoyiSelf | Self |
| JJacques DepelchinSelf | Self |
| ZZana Aziza EtambalaSelf | Self |
| DDavid NorthrupSelf | Self |
| PPapa MauriceSelf | Self |
| JJules MarchalSelf | Self |
| MMaurice LenainSelf | Self |
| HHonoré VinckSelf | Self |
| EErnest Wamba dia WambaSelf | Self |
| JJuliana LumumbaSelf | Self |
| JJan VansinaSelf | Self |
| LLubamba DibweSelf | Self |
| MMubenga wa BeyaSelf | Self |
| GGregoire MulambaSelf | Self |
| EEtienne MutshipayiSelf | Self |
| AArnaud ZajtmanSelf | Self |
| FFrank McCourtSelf | Self |
| JJim FreedmanSelf | Self |
| LLudo De WitteSelf | Self |