Hm. Here goes.

Necron (FFIX)
Alex (Golden Sun series)
Isaac (Golden Sun series)
The Hulk (Marvel comics)
Doc Samson (Marvel comics)
Night Terror (SC III) If he's too close to Nightmare, whatever.
The Blob (Marvel comics)
If near-mindless engines of destruction are allowed:
Dullahan (Golden Sun 2)

Could you be more specific about which "Will" is banned?
If it isn't Will Parry from His Dark Materials, I nominate him.