Template from RPDream. Probably the best guidelines I've seen from it.

Character Name: Marcus Sperrin
Age: 15
Race: Human
Gender: Male
Appearance: Long shaggy blond hair, about 5'9", slim, color-changing eyes which are usually ice blue, cleanly shaven.

History: Marcus was born into a high class family, and lived normally until about 7 years old, when he started learning he could hear people who were not speaking and saw things randomly move. He saw many therapists until the age of 11, when he and his parents learned he was not psychotic, but had telekinesis. His parents were horrified, thinking they had given birth to a monster, and as Christians, saw him as possessed. His resent for his parents grew until he was 14, when his parents attempted an exorcism. His hate was too much. He locked himself in his room afterwards, renounced his Christianity, and They sent him away to a boarding school, where he has to hide his powers or risk being persecuted by his peers and teachers.

Personality: Marcus is a seemingly kind-hearted, happy-go-lucky, intelligent person. He's always very helpful, but when crossed his personality shifts into a cold, emotionless person. His thoughts are quick and sharp at this time. But even when he is happy, he is constantly studying people, profiling them. He's contemplating all actions. He is a philosopher at heart.

Weaknesses: He is weak to everything a normal human is, but loud and distracting noises interfere with his ability to channel his telekinetic powers.

Weapon: In a fight, Marcus would use his telekinesis, but if he cannot channel his powers, he uses a pair of brass knuckles he carries on his belt

Other: When angered enough, he goes into an absolute rage in which he loses all sense of thought. This can happen, but it is nearly impossible for him to reach this state.