Found this guy on the Coreheim homepage (which is a stand-alone rules modification to Mordheim).
The most recent update to the blog featured a Chaos Dwarf-themed Ogre Bodyguard by Lew_b81.
The notes on the website state that this is an Ogre Bodyguard who has journeyed with the Black servants of Hashut.
More details can be found at:
The Coreheim Blog
The Coreheim Homepage
Coreheim’s Ogre Gallery (most of which are by Lew_b81 and contains some great themed Ogres).