Stellan Skarsgård as Father Lankester Merrin

Izabella Scorupco as Sarah Lesno

James D'Arcy as Father Francis

Julian Wadham as Major Granville

Remy Sweeney as Joseph

Andrew French as Chuma

Antonie Kamerling as Lieutenant Kessel

Ben Cross as Semelier

Alan Ford as Jefferies

Ralph Brown as Sergeant Major

David Bradley as Father Gionetti

Eddie Osei as Emekwi

Israel Aduramo as Jomo

Patrick O'Kane as Bession

James Bellamy as James

Cecilia Amati as Little Dutch Girl

Matti Ristinen as Medieval Priest

Lydia Darly as Sebituana's Wife

James Paparella as Boy in Market

Silvio Jimenez Hernandez as Stricken Turkana Worker

Yemi Goodman Ajibade as Turkana Shaman

John Sesay as Turkana Warrior #1

Sayoh Lahai as Turkana Warrior #2

Alessandro Casula as Preacher with Pazuzu

Robert Davide as Corporal Finn

Rupert Degas as Pazuzu (uncredited)

Michel Leroy as Tribesman in Hospital