Riku

Feel free to sniff away at my trio, Riku.

Vekk (asuran_hero) will have a little bit of darkness in him mostly coming from self-doubt and guilt. Kind of the result of being told by dear old dad that he sucks since forever and then never getting a chance to reconcile before Gadd got himself blown up.

Liz Thompson (deatheagle) also has quite a bit of darkness in her heart because she grew up on the street and spent most of her life mugging people and doing other things that weren't very good for her. (She actually met Kid by trying to mug him.) She's on the straight and narrow now, but there's still a bit that lingers around.

Chuck (passengerseatdriver), again, has darkness in his heart, largely spawned from self-doubt and insecurity.

Death (reaperchop) also has quite a bit of darkness in his heart what with being the primary personification of the Madness of Order from his world. However, it's balanced with just as much light.