Olrox
From Multiversal Omnipedia
Olrox was sorceror ruling a portion of Dracula's castle during Alucard's assault. In addition to his formidable magical powers, he could also transform into a towering, fire-breathing, reptilian creature. Olrox, despite his power, met his end at the hands of Alucard.
Comments
Olrox appeared to be a vampire.