I've mentioned in other places, I'll be a Wizard or a Sorceror.
If a Sorceror, he'd be a talented kid dispensing his own brand of Vigilante Justice. Hockey Stick of Doom in one-hand, Aluminum Baseballbat Blasting Rod in the other.
If a Wizard, he'd be a White Council Intelligence Liason (aka a Spy) codenamed Whitestaff. You know those guys with babyfaces, they're like 20-something, but they look 16 and still behave at that same age? Whitestaff's like that. He's really like 70-something, but he still looks and behaves like a teenager. Because of that, his Magic abilities wouldn't be as high as other Wizard characters(He's always been a slow learner), but his Contacts Skill would be as high as it could go. It would also make for an interesting Aspect that he looks young, but he's an old guy. Everytime a cop pulls him over they think his ID's a fake and everytime he has to renew his driver's license, they think he's hacked the DMV computer or something.
Whitestaff's history is that he was a member of a prestigious Wizarding family being groomed for the White Council in hopes of one day becoming Senior Council. His lineage has a long history in the magical world, especially considering his family name isBalthazar. Instead of joining the White Council though, he went off to fight World War II instead. His magical abilities, though weak, made him the ideal spy. During the height of the Cold War, he was the one of the best Counterspies in the business since he could burn out every bug in a room.
The current war as well as some obvious real-world events got Whitestaff to finally grow up a bit and join the White Council. He has a lot of Contacts and he knows how to get things.
Those are my ideas anyway.