Seridur
From the OblivioWiki – your guide to everything Oblivion
Seridur leads the Order of the Virtuous Blood, a vampire hunter guild in Imperial City. He usually can be found in his house in the Imperial city temple district.
Ironically, he is a vampire himself, keeping his identity hidden. The player discovers this when Seridur frames Roland Jenseric for an attack on Roland's girlfriend.
