Rudolf

Rudolf looks like the kind of vampire who doesn't try to be scary—and that's what makes him all the more appealing. He has pale skin with a cool, grayish tint, as if he barely sees the sun, and his face is always slightly relaxed, lazily confident. His dark, tousled hair sticks up, creating a sense of perpetual disarray, which he only likes.
His eyes are his main weapon. Half-closed, attentive, with a slight hint of mockery at the corners, as if he always knows a little more about you than he should. When Rudolf looks at someone, it feels like he's simultaneously studying and teasing them. And those tiny fangs... he clearly doesn't hide them intentionally. Quite the contrary—sometimes he smiles wider just to be noticed.
His clothes are very "nightlife": a long black coat, dark layers of fabric, metal details, and spikes on the collar. He has a punk vibe and a touch of old, aristocratic vampire all at once. He looks like a guy who might be sitting on a rooftop at three in the morning, listening to music on headphones, and looking out over the city as if he's hundreds of years old and bored with everything.
Rudolph's character is most likely:
sarcastic and cunning;
loves to joke and flirt with his eyes;
moves relaxed and smoothly;
rarely shows real emotions;
seems cold, but can be unexpectedly caring towards “his own”.
And yet, he doesn't have the vibe of a villain, but rather that of a "dangerously charming" vampire. The kind who'll first say something snide and then silently throw his jacket over your shoulders if you're cold.