I haven’t done my Armand headcanon yet, still thinking about it!
Young Hugh Dancy, no. Hugh looks more like a Nicolas to me, but even then, not really my headcanon. For me, physically and emotionally, he’s too manly to be Armand, too earnest and soft to be Nicolas. He is adorable tho, just look at him! And he does look perfectly believable in period costume. I’d take him as another VC character.

[^X by @oruczadesolmaz and they have more in their post, please reblog their photoset from them!]