I'm gonna try and make this guy kinda like a version of me...but a hell of a lot better. Oh, and older. But not much.
Name: Gabriel Fret.
Hero Alias: Eidolon. (Reason behind found here -
http://en.wikipedia.org/wiki/Eidolon_(astral_double) )
Status: Good.
Abilities: Shift into a spectral state. When in this state he is not able to effect anything, but is bound by them. By this, I mean he could jump into a wall and though he would not cause it to shake of disturb any dust, he could not go through it, same with punching people. Due to this, things cannot effect him. He could be punched in this state, but would not be damaged in any way (though would be moved by the impact). He can also bend gravity to his will in this spectral state, thus making flight possible.
But there are downsides. His entire body must be in one state or another. No moving his arm out of it so he can punch but not be shot etc. Also, he cannot effect air. Though he does not need to breathe, he can't speak, as the air does not vibrate. Nor can he hear. The one thing that does effect him is light. He casts a translucent shadow and can see. And if it's okay with him, Doc/ volpone has engineered clothes and blades to be compatible with Eidolon's DNA, and thus, they can travel into the state with him (though are too bound by the same restrictions he is.)
Personality: Not very charismatic and enjoys the use of longer words. Slightly sarcastic and very willing to make alliances and work as a team. He's more the guy who spies on the enemy and works well in short attacks and backup than the main man. Doesn't have a job. Lives off of odds and ends he can take and some money a relative left behind.
Costume: Grey sweatshirt with a thin layer of protection underneath. A white diamond with a grey swirl roughly sprayed on. Black trousers that are easy to move in and quite tough. All Star Converse shoes. Long hair obscures face. Wears Glasses when not fighting. Probably a belt with the weapons. Maybe one stored up the sleeve as well.