Cpt_kirstov |
An early "official" version of Radavan showed up in a Kobald Quarterly Issue.
Dave Gross did a contest where people could stat upda a cahracter from his novels and he picked his favorites a few years ago... it was here on the paizo blog.
But other than that and the examples Belabras gives above, I doubt it will happen. Different authors use different methods to craft their characters. Some have stated they write up full character sheets, while others "just know about what class levels they are so a level 2-3 character doesn't cast planar binding or something".
Still other recurring characters have used the retraining rules from ultimate campaign, so their stats in one story could be very different from other in the next as they have grown into the changes.