The mischievous half human half dragon who always take that one important item that you have to trek through the game to get back.

The NPC who you help and disappears after you do so, but gives you a blessing.

The trouble making kid who tends to give the village a hard time whenever possbie. His actions eventually jeopardize the world.

The schizophrenic neutral character who helps out the heroes and the villains, because his dual sides can't decide which he wants to side with permanently, and eventually reaches a mental breakdown and decides to try to kill everyone. Is eventually stopped by both sides combined because of her tremendous power.
Drakky, you scareh XD

A secret character that you can obtain in your party through a long, multi-quest and specific actions throughout the game.

The antisocial guardian angel of the party who indulges in childish things, and prefers not to talk unless it's necessary.

The famous Hero know world wide who lets his fame get to his head and becomes slowly corrupted that he loses himself in his own indulgences and jeapordizes the world. Rather than trying to rectify the problem he causes his pride causes him to essentially turn evil.

The Lunarian who comes to Earth to help the party because he's actually the protagonist's ancestor. I didn't just totally rip off FFIV.

I totally picked up on the rip-off at the second word xD
By the way have you read the webcomic Wayrift?

The creepy mask surgeon with a good reputation. But is actually a twisted maniac and one of the party's first bosses in the game.

The foreigner who becomes a member of the team out of the need to be accepted by someone.

Wayrift? No, I'll look it up.

The thief and bounty hunter who has a bounty on her own head and joins the party for safety.

The oddball hyper one who gets into a lot of trouble most of the time, usually ending up getting the party involved.

DAMMIT DRAKY!

The member of the party a little bit on the crazy side, who is also obsessed with symmetry

HAHA YOU! >: D

The asshole playboy who tries to hit on every girl he see, despit her race or marital status. You are a swords man and a tank in battle but hate ruining your face.

The ninja who has his own agenda. He dislikes the main group but will get along with them as long as his own needs are met.

Awww D: I not like that

The half good half bad member of the party. She is still good at heart but sometimes makes irrational decisions and goes out of her way to solve things violently that could have been solved peacefully

YOU MOTHER F*CKER DARK.

The Dark spirit who has teleporting abilities and spies on the party from afar for the dark lord.