We've been informed that your party in Knights of the Old Republic II will consist of 10 characters. Seven of these have already been revealed to an extent. This leaves three more that are yet to be announced.
1. Your Character - Jedi Guardian, Sentinel or Consular
It remains to be seen if your main character has a real name (like Revan from last time) or if they will just keep the moniker that you give them. This character's attributes are up to you.
2. Kreia - Jedi Consular
She is the older female Jedi in the brown cloak. I remember seeing her with a green lightsaber, so I'm assuming she's a Consular.
3. Altris - Jedi Guardian
She is the beautiful younger Jedi with the platinum blonde hair. She always has her blue lightsaber, so again, I'm assuming her class by it's color. The name may be slightly different, I think they're trying to keep it under wraps.
4. Atton Rand - Scoundrel
He is the Han Solo-esque character we see from time to time. He has brown or black hair and wears a vest. Ah, he just looks like Han Solo. Simple enough.
5. Mira - Scout
Mira is the red-headed firecracker bounty hunter with the bare midriff that we've seen in recent clips. She's also got a super-cool rocket launcher thing on her wrist!
6. T3-M4 - Happy Li'l Droid
One of the least popular characters from KOTOR I, T3 is now supposedly upgraded. This remains to be seen, but he can't be all that bad, can he? How he meets up with your character remains to be seen.
7. HK-47 or another, similar droid - Combat Droid
It has been announced that a droid similar to a certain homicidal "meatbag" killer will be in your party. Whether this is HK-47 or not remains to be seen, but heck, there's always two droids. Just look at the movies.
Unknown characters:
Since you get at least one of each class in your party for variety, we can estimate by logic what the other characters will be.
8. Male Jedi Sentinel
Since we've already got two female Jedi, it stands to reason that the third will be a male. So it looks like a man is behind the yellow lightsaber in this installment of the series, also to those of you expecting Bastila, Juhani or Yuthura Ban in your party, it looks like your chances are slim.
9. Soldier
We haven't seen a soldier yet, so it is reasonable that there will be one in your party. It is uncertain whether they will be male or female. However, following precedent, in your party there are seven humanoid characters, discluding yourself and the droids. Last time there were four men and three women. It could be different this time, but I'm betting it's still the same ratio.
10. ???
What other character class, gender, species has been left out of the mix? Hmm...
Also, we've seen nothing but droids and humans up to this point, so I'm betting that at least one, if not all of the remaining characters are aliens. We had three (or four) aliens in the first game (Zaalbar - Wookiee, Mission - Twi'lek, Juhani - Cathar, Canderous - Mandalorian), and we will probabaly have a similar number in this one.
Possible species:
Any of the species from KOTOR I:
I think Wookiee, Twi'lek, Cathar and Mandalorian may be out, since they'll want to give us something new. They may introduce any of the following:
Mon Calamari - we haven't seen any of these yet.
Bothan - I hope not. Not my favorite alien.
Zabrak - Would be cool, but really only if similar to Darth Maul. I dunno.
Rodian - Could get annoying very quickly.
Sullustan - Another potentially annoying alien. Who really liked Nien Nunb anyway?
Aqualish - Hmm. Well, maybe not.
Selkath - Since the "pathetic fish" look all alike, this one may be out too.
Iridonian - We saw one in the first game, the really evil guy in the yellow armor.
Echani - They look just like people, so this may be pointless.
Duros - They don't do much besides get killed. Hmm.
On second thought, they may have another Twi'lek after all, since there were so darn many of them in the first game. Maybe we'll be lucky enough to get Mission's brother Griff. (sarcasm!)
I haven't meant this to be a definitive statement on anything, only my hypothesis on what may be in the game. Feel free to offer any suggestions or to fill in any holes or gaps I may have left. What does everybody think about all of this?