You could try starting a multiplayer game off the internet with control of all players to yourself.
Therefore you can create extra evil characters to fill those holes in your party you would usualy fill with goodie people.
BTW:---Oh great Dragon I plege my allegiance to you for all eterity!!--But right now I'm with The Band most likely on the other side of um... the continent so uh... I... hm.
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<br /><br />\"Sa souvraya niende misain ye\"<br />~I am lost in my own mind~<br /><br />\"Paradise on my right, Hell on my left, and the Angel of Death behind.\"<br />~The Sirat: O.C. Bible~