This was after IC and OYL, so we'd seen him in the build up to "War Games" (Supplying weapons and the like to Black Mask and IIRC Kryptonite to the Society), the whole "Under the Hood" arc and his random beating up of Robin "Just because"). He'd beena round for good while and had an entire story arc focussed on him, so if he had no clear personality, it wasn't for lack of trying.