cast
-
Don Cheadle
Narrator (voice)
- Ciaran Reilly Roger Casement (voice)
-
Alfre Woodard
Ilanga (voice)
-
Philippe Bergeron
-
James Cromwell
- Frank McCourt
- Adam Hochschild Self
- Tom Wright Additional Narration
- Annick DeVille Self
- Jean-Pierre Bemba Self
- James Newman Self
- Mbaya Mpoyi Self
- Jacques Depelchin Self
- Zana Aziza Etambala Self
- David Northrup Self
- Papa Maurice Self
- Jules Marchal Self
- Maurice Lenain Self
- Honoré Vinck Self
- Ernest Wamba dia Wamba Self
- Juliana Lumumba Self
- Jan Vansina Self
- Lubamba Dibwe Self
- Mubenga wa Beya Self
- Gregoire Mulamba Self
- Etienne Mutshipayi Self
- Arnaud Zajtman Self
- Frank McCourt Self
- Jim Freedman Self
- Ludo De Witte Self
- MM Self
- Chris Curry Voice
-
Ron Canada
Voice
- Marc-Gregory Barrett Voice
-
Dominic Keating
Voice
- Andre Kelley Voice
-
Charles Dennis
Voice
- Karen Landry Voice
-
Keith Ferguson
Voice
-
Chris Mulkey
Voice
-
David Dayan Fisher
Voice
-
Phil Proctor
Voicer
-
Anna Graves
Voice
- Magnus Stefansson Voice
-
Judith Scott
Voice
-
Julian Stone
Voice
-
King Leopold II of Belgium
Self (archive footage)