Here's idea number one:
Urban Knight (based off a picture from the Image Thread). Either a retired SWAT officer or a soldier coming back from the Middle East who had to stop over in either England or Ireland on the way back to the States. While there, he came across an old sword, which he somehow managed to get back home. Compelled to take some kind of action against the crime the regular police can't handle in the post-Ragnarok world, he created the persona of the Urban Knight, making a mixture of knight armor and modern tactical gear with a riot shield. He operated by night of course, fighting malevolent Base Raiders or anyone or anything else that would be a threat to the populace. His goal is to become a true knight, ceremony and everything.
Now if it was Ireland he went to, the sword is the Claiomh Solais (Sword of Light) and if England, Excalibur. These allow him to do harm to supernatural threats at all, and down the line after unlocking their true potential would become Aspects in their own rights. Speaking of, one Aspect I know for sure he has is Clamor of Battle, or Battle's Clamor. His head becomes filled with the battle cries of past warriors and the clash of sword and shield. He can't hear anything, and is protected from psychic assault. Hopefully it would protect against social combat too, but that's for the experts to decide.
Concept 2: A highly advanced and sophisticated hunter/killer robot from another dimension by the working name of Grey, based off a character from Choujin Sentai Jetman. He was once apart of the elite soldiers of a multi-dimensional empire, but something made him end up on Earth and in the hands of the Underground. Nowadays he makes a living selling his services to base raiders to pay for his walk in closet sized residence down there, while sampling fine wines, smoking cigars and cigarettes, and playing a piano he got down into that one cafe place somehow.
Aspect-wise he'd have knowledge of high technology and multiple dimension and traveling between, being a master tracker, expert marksman since he's a walking arsenal, and a major goal is to be able to truly feel love, and be "warm".
How do these concepts sound?