Leif aka Huger レイフ aka ハガー

Leif aka Huger and his girlfriend Jessica were a couple of low level youngster vampires misguided into a belief that they can become immortal by killing off 13 random families on a road. They've managed to kill 4 before clashing with Hellsing operatives to our pair's great surprise. In Hellsing manga vampire boyfriend's name has never been mentioned so in different adaptations authors went with different versions: in Hellsing TV series he is called "Leif" multiple times while in Hellsing Ultimate character's name is never spoken out loud, yet noted as "Huger" in the end credits of episode one.