[Lost Eternal]

In some way, all the main Lost characters have a problem in some form or another. Kate's the criminal, Sawyer a conman, Jack has multiple less-severe issues, Charlie is/was a drug addict, Locke with is abandonments, Sayid was a torturer, as well as everyone I didn't mention.

The main three I can think of that don't exactly fit into any catagory - probably will, but we haven't had flashbacks yet - Libby, Rose, Bernard, and Eko.

Libby will probably turn into a interesting character, as we can see by the lack of concern as she set the man's leg on the beach.

Eko...I'm not sure about him. I think there are elements in his past that he's fled from and will have to atone for.

Rose and Bernard are more difficult. Bernard could be in just about any direction - he could have stolen something, commited adultary, anything.

Rose is the hardest...they've made her out to be near perfect, like an angle. Deffinatly "good" - yet she's still there. I don't know.

Anyway, just some thoughts.