They have pointy ear, not much different from a humans, sharp shark like teeth, and long sharp finer nails. They are very odd and enjoy pain upon themselves and others. They drink blood, and some eat meat of every kind. Even they're own. Some choose to be normal and live like a human, but they still crave blood. Meaning, parents can choose if a child drinks blood or not. And, if they choose for them to drink blood and they do not for a long time, they will get sick.
And, I know this just sounds like a jumble of races mixed together, but I just randomly came up with it one day.