[SanePsycho]

A plant demon disguised as a human.

(Whee!! I'm a Water Bender!! :D)

[Espy]

The thief character who loves tagging everything around her.

Speaking of tagging...we really need more Ragnarok rogue-esque items around here.

[Vanitas]

The protagonist character that has had a rough past and was seen as an ungerdog when they were younger and then something terrible/dramatic happened in their lives and they were forced to live a different path and fend for themselves and grew into an independent character trying to set things right.

[Quiet Man Cometh]

a Gimmie Cat ;).

[Serra Britt]

A chimaera created to destroy humanity.

(okay maybe I dragged a bit of your story into it Quiet...)

[Quiet Man Cometh]

Heh, that's fine ;).

The party mage with the kitty that takes up one held item slot. Wont let anyone else hold it.

[Espy]

....The seeming innocent girl. (Ever watched/read Higurashi?)

[Quiet Man Cometh]

Nope.

Demon leader of Wolf Clan, side boss in a long and complicated side quest.

[Serra Britt]

An expert ghost and demon slayer, who looks composed when not working, but becomes deadly serious when she is.

[Kyp]

Mysterious messenger who gives key clues to the quest or completely misleads the heroes

[Espy]

....A bit too epic to be in a game...

The long-lost warrior of ancient times who sacrificed himself to save a land from destruction. The protagonist, after a long series of clues and quests, figure out that the warrior's the key to some great secret/revelation.

[Kyp]

Wow, Thanks!

A mysterious anti-hero who is both tracker and guide to the hero. Ends up saving the hero's behind up until the hero learns to be epic.

[Quiet Man Cometh]

Guardian boss who determines whether or not characters are worthy enough to enter a particular area.

[Espy]

The gatekeeper of a mansions during festivities. She'll invite you in (you neeeeed to go there for a quest), but only for a hefty price.

[Vanitas]

A character that is upbeat and brings the party into good spirits and motivated them when everything seems to be going wrong or there is no hope.

[Quiet Man Cometh]

Villain that is really really anoying to kill (see: Majora's Mask Goron temple mini-boss)