This sounds pretty cool. Got room for another?
Character Name: Trent Barnett
Code Name: Diamond
History: Trent was born in a small town in the deep Southern US, and raised by his hyper-religious aunt and uncle. His childhood was largely miserable under their strict rules, but he found refuge in music. At first just singing and humming church hymns or little made-up melodies, he later learned to play the guitar from one of the science teachers at his high school. His teacher also imparted a burning curiosity about the natural world and a deep, abiding love of science and reason. After he graduated, he packed a bag and struck out on his own to escape his family's religious fanaticism. Trent discovered rock and roll, joined a band and toured all over the country, playing in dive bars and seedy hole-in-the-walls, occasionally busking for quick cash. He'd just finished a show in Tuscon when a pretty blonde caught his eye and invited him up to her hotel room. The next morning, he woke up with a splitting headache, strapped to a bed with nearly a dozen needles jammed into his arms. And the blonde was nowhere in sight.
Personality: Trent seems to be a pretty relaxed kind of guy, but under the surface he's a very shrewd dude. He's got his own code of ethics, but even he probably couldn't tell you what they are. He knows there are others being kept at the Institute against their will, and if he gets a chance he'll be happy to help them, but he ever gets the chance to escape alone he'll take it without losing any sleep. The guards think he's very laid back and resigned to his captivity, but he's only biding his time...
Appearance: 6'2, 210lbs, broad shouldered with legs like tree trunks, Trent's muscular frame is often intimidating to those meeting him for the first time. His dark brown eyes, almost black shaggy hair, crooked nose and heavily tattooed arms don't do much to soften the image, but he has a voice like an angel. Or a devil, however one wants to look at it.
Powers or Abilities: The Institute cracked Trent's head open and stuffed his brain with implants, allowing him to exhibit control over sound waves. As a result, he can use any instrument--even his voice--to shatter solid objects, generate deafening sonic attacks, even (theoretically) manipulate the brain chemistry of others. His powers are still a little out of control, but he practices and studies them diligently. They'll be quite useful when he makes his escape.
Other: Trent takes solace in playing the guitar his captors let him keep, and in cooking or baking in the cafeteria from time to time. He's a surprisingly good cook.