Suggestions by @theophiledumont

Adrian Brody

as Fabius Bile in Warhammer 40K (Henry Cavil/Amazon)

Cate Blanchett

as Saint Celestine in Warhammer 40K (Henry Cavil/Amazon)

Brad Pitt

as Sanguinius in Warhammer 40000: Horus Heresy

Denis Villeneuve

as Producer in Warhammer 40000: Horus Heresy

James Gunn & Denis Villeneuve

as Producer in Warhammer 40000: Horus Heresy

Denis Villeneuve

as Director in Warhammer 40000: Horus Heresy

Woody Harrelson

as Horus Lupercal in Warhammer 40000: Horus Heresy

Jon Bernthal

as Perturabo in Warhammer 40000: Horus Heresy

Joaquin Phoenix

as Konrad Curze in Warhammer 40000: Horus Heresy

Josh Brolin

as Horus Lupercal in Warhammer 40000: Horus Heresy

Bryan Cranston

as Horus Lupercal in Warhammer 40000: Horus Heresy

Joachim phoenix

as Konrad Curze in Warhammer 40K (Henry Cavil/Amazon)