Don Cheadle as Narrator (voice)

Ciaran Reilly as Roger Casement (voice)

Alfre Woodard as Ilanga (voice)

Philippe Bergeron as

James Cromwell as

Frank McCourt as

Adam Hochschild as Self

Tom Wright as Additional Narration

Annick DeVille as Self

Jean-Pierre Bemba as Self

James Newman as Self

Mbaya Mpoyi as Self

Jacques Depelchin as Self

Zana Aziza Etambala as Self

David Northrup as Self

Papa Maurice as Self

Jules Marchal as Self

Maurice Lenain as Self

Honoré Vinck as Self

Ernest Wamba dia Wamba as Self

Juliana Lumumba as Self

Jan Vansina as Self

Lubamba Dibwe as Self

Mubenga wa Beya as Self

Gregoire Mulamba as Self

Etienne Mutshipayi as Self

Arnaud Zajtman as Self

Frank McCourt as Self

Jim Freedman as Self

Ludo De Witte as Self

MM as Self

Chris Curry as Voice

Ron Canada as Voice

Marc-Gregory Barrett as Voice

Dominic Keating as Voice

Andre Kelley as Voice

Charles Dennis as Voice

Karen Landry as Voice

Keith Ferguson as Voice

Chris Mulkey as Voice

David Dayan Fisher as Voice

Phil Proctor as Voicer

Anna Graves as Voice

Magnus Stefansson as Voice

Judith Scott as Voice

Julian Stone as Voice

King Leopold II of Belgium as Archive footage