Re: Who has any information about this character ?
Whoever he is, he's not in third edition. There's another book called Lords of Darkness (a FR 3.0 book), but it's not the same book and doesn't have him in it.
Your best bet is just picking up Lords of Darkness. Found it here and here.
Awesome Cyborg Doom Monkey avatar by Lord Fullbladder, Master of Goblins. Offer up your robo-bananas to him.