The Lion of Longtrees
Leo is a professional bodyguard. He works usually works medium term contracts (weeks or months) but is open to negotiation, at least until the contract is signed. Once he's signed on, he'll work the contract as agreed until it's completed come hell or high water. This single-mindedness has given him a useful reputation, and a couple of enemies.
He's trained in a couple of styles of unarmed combat (and keeps up regular training). He prefers knives over guns, but knows that ignoring guns would be giving too big an advantage to his opponents. He's a fair shot with a rifle, and ok with a pistol (but is likely to just drop the firearm when it runs out of ammunition, unless he's got a specific reason to keep it).
He's generally friendly and approachable, good with people. Of course, he can put on a blank face when he's working, and will semi-consciously use his bulk to intimidate people out of starting anything with his current client. He keeps up to date with world news and the local sports teams specifically to carry on small talk while scanning the crowd for trouble.
He's had lessons in slight-of-hand tricks, and again practices to keep current. He can entertain and distract a client's child (or a client) with a cup and ball, or pass through airport security with enough of an arsenal to hijack several planes.