As usual, I gotta say that it’s not JUST about appearance, so I’m open to suggestions, and it would need to be someone who can make the transition between mortal and vampire really well.
THAT SAID: I would be looking for someone close to their 20’s, or looks like it, with luscious dark hair, A+ artist brooding skills, a smile that can melt your heart, and an almost feral edge, this is not your boy-next-door, but someone w/ razor sharp wit ever at the ready to stab you with, but he keeps it back as much as he can. Leashed cruelty.
Major plus if they can play violin, too, bc I know ppl are going to be watching their damn fingering and will criticize them up and down, even if they get training with it, bc violinning is such a huge part of that character.
Some ideas (in no particular order), and there are more in my #Nicolas de Lenfent tag, I’m just picking some favorites here:
So Hugh Dancy is not this age anymore, but we could find someone who resembled him at this time, as a starting-off point.

90’s!Trent Reznor:
Same comment as for Hugh. Must be someone out there who looks like Trent did at this age. Trent could look like an almost-feminine beautiful mess,

And he could look like he was barely tolerating your idiocy:


Nicolas RPer @a-misunderstanding-my-love uses model Michael Gandolfi (and others, I think?):

Nicolas RPer @darknessmolten uses David Garrett (who actually CAN violin!)

90’s!Skeet Ulrich:


