Allow me to voice my interest. 
Name - Michael Cullen
Alias - Seraphim
Powers - Solar manipulation. 
Weakness - Night time.
Experience - Extensive military training, is an avid swordsman. 
Appearance - [hider=All he needs is a helm][img=http://i804.photobucket.com/albums/yy322/edge_519/LuciusMWProfile_zps2494f650.jpg][/hider]
Age - 22
Brief Bio - His powers are natural, but his life style is far from it. During his youth he had no control over his "gift" Making him more than just a little bit of a hazard. Blasting random points with focused heat and almost freezing others led to the quick notice of the powers that be. Thankfully this isn't one of those dark agencies but one that legitimately wanted to aid him, but he was still forced into isolation to protect those around him. It took about a year of attempts before one of the trainers stopped seeing his gift as a deformity and more an extension, leading him to treat it like a muscle. How do we train muscles, physical exertion...He wasn't told till he was 14 that this was just a placebo, but by that time he was so ridiculously into pushing the limit that he didn't care he was tricked. 
When he turned 18 he entered the military services, and despite his lack of field experience he excelled as both a scout and a combat deterrent. Mike's career is both decorated and largely classified, but when to Supers engage in battle word gets around. His nickname came from his adoration of chivalry and the idea of fair combat, it was only until later that his enemies would call him that due to his seemingly divine gift. At the end of his most recent victory with another super that single handily eliminated an entire unit of tanks, that he was seen as too valuable to only deal with petty squabbles. 
Notes - He is a knight to his core, and so long as he can help it he will protect those that he sees as just. He does not actually like his nick name or his armor, but understands the importance o symbolism when seen by the public...Though he does have a strange habit of referring to female associates as Lady. 
Commitment - [once a day would be a minimum with the exception of the Christmas holiday. ] 
(hopefully this is a good place holder. I am not overly attached to the back story so if its not to your liking let me know.)