Oh come on now. Everyone in Caldeum that's rich dresses crazy like that. If he was a demon it'd be a little obvious, not ruling it out but just going by looks I'd accuse all the nobility of Caldeum to be demons.
But maybe they ARE!!!!! DUN DUN DUNNNNNNNNNN!!!!!!
But seriously though. He's got claws for hands and the same design profile as Belial. That don't happen by accident, I'd wager. And remember what they said at the panel. Caldean kingship isn't inherited. Correct me if I'm wrong but I believe they said astrologers or mystics or some such were consulted to find the heir, kinda like the Dalai Lama IRL. Seems like just the M.O. for the "Lord of Lies" to pose as an ineffective ruler/nice kid while secretly plotting the downfall of a nation. And remember, Belial's buddies the snake demons actually CAN masquerade as humans...so you may not be as far off as I think...might be time to check those "new royal guards" for scales....
The answer is literally staring us in the face! Looking back at the concept art from the lore panel, compare the art of Prince Hakan and Belial....
Belial(pay special attention to the front view of his head)
Prince Hakan
Notice how their silhouettes are similar, and particularly notice that the face coloration on Hakan matches the way Belial's face is laid out. To say nothing of the matching headgear.
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But maybe they ARE!!!!! DUN DUN DUNNNNNNNNNN!!!!!!
But seriously though. He's got claws for hands and the same design profile as Belial. That don't happen by accident, I'd wager. And remember what they said at the panel. Caldean kingship isn't inherited. Correct me if I'm wrong but I believe they said astrologers or mystics or some such were consulted to find the heir, kinda like the Dalai Lama IRL. Seems like just the M.O. for the "Lord of Lies" to pose as an ineffective ruler/nice kid while secretly plotting the downfall of a nation. And remember, Belial's buddies the snake demons actually CAN masquerade as humans...so you may not be as far off as I think...might be time to check those "new royal guards" for scales....
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Belial(pay special attention to the front view of his head)
Prince Hakan
Notice how their silhouettes are similar, and particularly notice that the face coloration on Hakan matches the way Belial's face is laid out. To say nothing of the matching headgear.