somewhere in the vicinity of 500, but by all appearances about 40-45.
longish (just about to his shoulders) thick, brown hair, with an accompanying neatly-trimmed beard.
brown eyes, too.
a strapping 5'10", with what I would characterize as a beer gut if I didn't know beer would make him hilariously projectile vomit.
oh, right, he has fangs. He is not shy about them, and if you really piss him off, he'll bare them and hiss at you. It's very intimidating, okay.
generally speaking, dresses like a pseudo-goth steampunk emo kid. The opening credits show that he and Nadja have totally adopted the clothing of the time in the past, so...I'm not really sure why they both default to the styles of the late 19th century? But they do. I love this canon and its lack of concern for these things.
speaks in a British accent so plummy and fake-sounding that I figured it was until I looked it up and Matt Berry turned out to be an actual Englishman.
when he turns into a bat, he yells, "Bat!" first and then trails a plume of black mist/smoke behind him to cover the cheap special effect transformation.
and he totally has two human NPCs following him around with a camera and a microphone at all times.
Laszlo Cravensworth
cheap special effecttransformation.