Stellan Skarsgård as Father Lankester Merrin

Gabriel Mann as Father Francis

Clara Bellar as Rachel Lesno

Billy Crawford as Cheche

Ralph Brown as Sergeant Major

Israel Aduramo as Jomo

Andrew French as Chuma

Antonie Kamerling as Lieutenant Kessel

Julian Wadham as Major Granville

Eddie Osei as Emekwi

Ilario Bisi-Pedro as Sebituana

Niall Refoy as Corporal (Thief)

Lorenzo Camporese as Private (Thief)

Burt Caesar as Dr. Lamu

Marcello Santoni as Dutch Farmer

Griet van Damme as Teenage Dutch Girl

Simon McLinden as Caporal

Pet Chege as Sebituana's Wife

Hamadi Mwapachu as Convulsive Worker

Evelyn Duah as Mara

Rick Warden as Caporal Williams

Michele Mariotti as German Sergeant

Ben Meyjes as Soldier #2

Oliver Maltman as Soldier #3

Omari Carter as James

Nick Komornicki as Gun-Firing Soldier

Mary Beth Hurt as Pazuzu (voice) (uncredited)

Adrian Black as Joseph