While that's somewhat similar to Alucard's role in Castlevania, Hellsing Ultimate's Alucard is anything but the kind-hearted son of Dracula. Another anime featuring Alucard is Rosario + Vampire.

Hellsing remains one of the darkest, most violent anime franchises to have ever been unearthed in the medium’s history, with fans of Alucard and his fellow vampires astonished to see that the ...