Oh, and the reason why Jon Bernthal is perfect to play him in a movie is because he has already provided the voice of the villain for two animated DC movies, specifically Justice League vs. Teen Titans and Justice League Dark: Apokolips War.
The Justice League (and, especially, the Justice League Dark), have faced off against their fair share of demonic entities, from Etrigan to Beelzebub himself, but there is one Hellspawn whom the Teen Titans can call an arch enemy, and his name is Trigon, who is actually the father one of its members, Raven.
The powerful being (who is not a pure Hellion, despite his demon physiology) is the literal embodiment of evil absorbed from 100 different galaxies with an unfair amount of abilities (including flight, invulnerability and mental manipulation) for someone so sinister.