Well, I'll throw my two bits in. Perhaps someone will find it interesting.
Ltheb Silverfrond
A Male Elven Wizard who appears at a glance quite young, but the lines on his face give hint to his true age, extended by the use of potent magic. (So old he has seen several dragons grow and die in his lifetime)
Taller than average, but thin. Not particularly muscular, but a veteran warrior can tell he has seen innumerable battles.
Long, gray or silver hair, perhaps with a braid. Green eyes. Generally found with a dispassionate look on his face. He generally cares little about the well being of others, but has been known to suffer from fits of generosity. His old age and experience have rendered him a bit cynical, and snide but truthful comments are not below him.
Possessions: Usually wears robes stylized to flaunt his power over magic and carries a runed but simple staff, unless traveling to lands he is not welcome, and there are many such places; He earned the reputation as a power-mad maniac in his youth. In truth, he enjoys the leverage a bit of intimidation can bring. When wishing to remain unnoticed he wears simple cloaks, common travelers boots and the like.
Usually keeps a Vorpal bastard sword at his belt. He is not proficient in it's use, but he is seasoned enough to be able to cut down the common bandit.
He is usually seen wearing many rings, some magical, but a few are sentimental items he has picked up from his many travels.
Typically casts spells that most efficiently overcome a given challenge. Generally defeats foes quickly with a quick painless death via Disintegration. For those that truly earn his ire, their deaths have been known to be slow, painful affairs. Thankfully, he no longer has any living enemies, and many of his foes believe him dead.
Long since retired from his adventures, Ltheb still sometimes travels along with young heroes to witness first hand their stories, rather than read some author's half-hearted interpretation of them. He frequently does this with the aid of a plethora of disguise spells. His usual disguises are that of a young, inexperienced elven bladesinger (Which his minor magics complement well) or that of an old, senile gnome Illusionist.