How many "LOST" characters can you name?

I've put them in groups to make it a little easier.

Note:
This list is by no means exhaustive. If you can think of someone I should add, please tell me.

Also, this list is not limited to main characters. If they've appeared on the show, and been mentioned by name on the show or elsewhere in LOST canon, they're fair game for the list. The list includes both living and dead characters, and is not limited to humans. The list does include non-speaking background characters (log-carrying guys, etc.), provided their name has been mentioned on the show or elsewhere in LOST canon. Unseen characters, and characters who only appear in canonical material outside of the show, are not included.

Some characters fit into more than one category. I tried to use the one that character is best known for.

I've tried to include alternate spellings to accept what the character is best known by (e.g.,
"Joe's mother" will be accepted). First names will be accepted for characters best known by their first names, and last names will be accepted for characters best known by their last names. For some characters, either the first or last name will be accepted, and for some characters, the first AND last name will be required. In many cases, nicknames will be accepted.

If you want to know who any of these names are referring to, or you think I'm making some of them up, I encourage you to consult Lostpedia.

If you spot anything in this list that you think I should change, please let me know by commenting.