I've been playing SWTOR for a month or so now, and every now and then, I've spotted certain high-level characters who look like they are controlled by players but behave very strangely. For instance, they never have companions with them, they never sprint/run/use a speeder, and they are usually found in areas way below their levels. For instance, there is a bunch of them walking around the Korriban Academy (I am playing as Sith Inquisitor). Also, I saw a couple of them trekking across the desert on Tatooine this weekend: one was some 10-15 levels higher than the other (and about 20 levels above me) and then they fought the Sandpeople at the oasis.
So this has been bugging me--are they real people who just have all the time in the world to role-play? Or are they AI-controlled--but made to look like they are player characters?