I didn’t see Belle yet (it’s on my watchlist). 

Physically I think he works, look at this smooth operator (we don’t need the context to know he is artfully cranking up the charm here):

Shirtless pic bc of reasons is this why ppl ask me about my casting opinions? You just want me to google these guys shirtless jfc don’t you: EDIT: Actually an anon informs me this one is Sam Heughan, but I’m leaving it here bc of reasons:

And his smile (necessary to the character) even has good dimple action, 

but then, when I checked out a video, I feel like his voice is really low for Lestat: 

Idk maybe he going for a lower register in this vid for a reason, but I see him more as Augustin or a young Lestat’s dad bc of that low voice.