Arsène Lupin III
He/Him (unless disguised)
So, Lupin is an ordinary human - that is to say he's not enhanced in any special sci-fi/fantasy/supernatural way. However, just because Lupin is human does not mean he's 'normal' in any way shape or form. Lupin might be the third of his name, but he's one of a kind.
Advanced Intelligence - On the surface he might seem like a doofus, but you can't actually get too many things past Lupin. He notices even the tiniest of details and can deduce things from a small scattering of facts. His grandfather was noted as a match for Sherlock Holmes and that hyper intelligent gene still runs in the family - even if Lupin sometimes seems to try to hide it. It's really that big beautiful brain of his that sets him apart from the rest.
Eidetic Memory - Helping him along with the above is this. Though it's not outright stated, Lupin's abilities necessitate an extraordinary memory. He is able to make perfect disguises of anyone he meets and remember all the details of their mannerisms and lives. He's able to duplicate artwork in photo-realistic quality - and instantly identify forged artwork or money - on sight. He can identify people based on smell - even if he's only smelled that scent once before. He has an encyclopedic memory of historical events as well, and he'll sometimes bring up some random facts about some of his targets when he's in the mood.
Subconscious Control - This is the closest thing I think Lupin has to an actual superpower, and it really only comes up rarely, but it's shown up enough that I can't leave it out. Lupin actually has complete control over his subconscious, meaning there's nothing about his own mind he doesn't know about. (Examples to come....)
Technological Prowess - This is not something trotted out too often, but certainly an aspect of his character. Lupin is able to hack into government databases and is generally good enough with machines to figure out how to get them going with minimal foreknowledge. He's also skilled at inventing things or creating compounds for smokescreens and the like - though mostly these things take the form of devices used to help him with his thievery.
Polyglot - For several of the above reasons, languages are easy for Lupin. He knows quite a few of them - most notably: Japanese, French, Italian and English - but catches on quick enough to just about any language he hears enough of. He's even better at imitating accents, and uses this skill often when it comes to his disguises.
Master of Disguise - Lupin's most notable ability - he can disguise himself almost instantly into anyone he chooses. He does this with prosthetic make-up and masks - though he can flip through disguises faster than a magician - but also takes to the form and attitude of the person he is impersonating so absolutely that even close friends of the person he is impersonating can't tell the difference. He keeps certain disguises on him at all times (Zenigata's most notably), and usually dresses in several layers of disguise when out on a job - but he is also very capable of improvising. Voice mimicry is also a part of this.
Master Thief - This is Lupin's one and only occupation, and as he is descended from the phantom thief, Arsène Lupin, his techniques are just about perfected. Lupin has never failed to obtain something that he has set his sights on (though keeping it is another matter). To this end, Lupin is extremely stealthy and an expert in lockpicking, safe-cracking and sleight of hand.
Escape Artist - He really does put the 'art' in Escape Artist. There's yet to be a prison that can hold Lupin for long - and handcuffs, ropes, chains and all other methods of binding shouldn't even try. He's better at a magician at this kind of thing.
Agility/Coordination - Lupin has shown multiple times that he has the quickness and coordination to dodge literal bullets. He's also been shown to have great gymnastic ability which helps him with the timing and flexibility of his movements. Catching this guy is not easy. But, he's still human, so it only goes so far.
Stunt Driving/Flying/etc. - He can do some Crazy Things with a car. Or a plane or anything else for that matter. Whether this is luck or skill might be up for determination, but he's never once batted and eye at a high-speed chase.
Marksmanship - Not the best, but if he's aiming he's going to hit more times than not.
Fighting - Also not the best around - and, truly, he won't spend any effort on this if there's an opportunity to slip away - but it's a mistake to think his slightness equals frailty. He can put up a decent fight and take a lot of damage before going down.
At the end of Part IV - after defeating Leonardo DaVinci, but before leaving Italy.