After a boring day at work that made me mildly insane (well, at least more so then before.) I present to thee:

Name: Sir Shirley Ragington the Third

Species: A human, thank you very much.

Looks: Imagine, if you will, a slightly older Benedict Cumberbatch, with Sherlock's thinking face on but grumpier, in a rather snazzy suit and a small gentlemanly 'stach. Now, imagine this man often being red in the face because everything is stupid and is annoying him a whole lot, and THAT is Sir Ragington.

Personality: This man is basicly a bundle of barely held back rage, there doesn't seem to be much that pleases him short of his tea and when he is able to act like a proper gentleman. He could be rather charismatic if he could put his rage aside for a few moments, but most humans and other things are so stupid, and he just can't help himself to give an exasperated sigh at the very least...
He is rather intelligent, and isn't afraid to show it, he often looks for the small details in things and is mildly stunned (and annoyed) that nobody else manages to see these things. If they do, Ragington isn't above approval and small bouts of happiness that everything isn't stupid, though this often comes off the wrong way. And for the love of all things holy, do NOT call him Shirley unless he says you may do so.

Back-story: A Ragington has been around in history for as long as anyone can remember, generally in the background of the more exciting historical things and seeming very displeased with the entire thing, though it could easily be another person of similar name. Clearly, there has been at least three, though nobody is quite sure how long this one has been around. He tells some rather exciting tales when pressed for them, like how he threw tea bags at the American Presidential Building, or sank the Spanish Armada with his rage alone. (he was 7 at the time, they stole his candy.) The Queen was so impressed with him, she knighted him on the spot, or so the stories say. He swears the stories are the truth (Gentlemen never lie!), and to be fair nearly everyone is too afraid of him and his nearly tangable cloud of raw fury to disagree.
Sir Ragington was sitting and having his afternoon tea when the letter appeared. He figured it was about time he was involved with something else exciting, he just hoped that, if there were other people, that they were to be more intelligent then the LAST crew he had to work with.

Inventory: Sword-Cane, functional in two ways, as your average walking stick, and, with the press of a button that releases a simple locking mechanism, the bottom part of the cane comes off, leaving the cane handle and a functional rapier. Like a sir, indeed.
All else is carried in a small drawstring bag, enchanted to hold more then it should. A bag of holding, if you will.
A box containing a full tea set, as nothing else gets Sir Ragington angry like people who can't drink their tea properly, and that's saying something.
A small collection of teas, for use with the tea set.
1000 money units in both Pounds and Dollars.
A small container of pure water.

Abilities: Ragington specializes in a form of elemental manipulation, if you look at Avatar: The Last Airbender's Water-benders, you've pretty well nailed it right on the head. He can manipulate water, be it in an offencive or defencive manner, and control the temperture of it. (obviously, he is far better at getting it hot then he is at making it freeze.) There are limitations, it's not like he can create a tidal wave for fun. The greater quantity of the water, the less likely he is able to keep it airborne. He is unable to use the water to slash or force people back if he is trying to use it as a shield, in fact, it takes him a few moments to switch stances to make the shield and to switch back to attacking. The more water there is, the harder it is to manipulate it, but when you can make a row of ice spikes appear at and through your opponent's feet with a thought, it can pay off if you can pull it off.
He does use this power to assist in the making of tea, and he can draw water out of nearly anything. (This can possibly include even living things in theroy, however Ragington refrains from using the power in that manner. It's rude and rather not gentlemanly at all to evaporate the opponent's bodily fluids because you can.)

His sheer quantity of rage can act as a wall of sorts to make people afraid or just leave, or even fuel his strength to near inhuman levels, however, even Ragington has a limit, so he tries to keep his fury in check. It isn't like he can't find other things to be mad at (his first name is a good start.), but it's better to keep some for emergancies. It takes time to build up this level of rage.

Skills: Extreamely observant, proficiant at sword fighting, good at etiquette and generally acting 'like a sir'. Can be very charismatic if he feels like.

Weakness: Teacakes, Anger Management Courses (potentially fatal to him, those are), Grass-types, getting over-angry. (Even Ragington can become so mad that he becomes a jabbering mess.)
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Is good?