Martin at Legends of the Sunpig has got a very well considered and documented essay on the recent controversy around Robert Crais and his filing of a copyright infringement lawsuit against Activision. Copyright issues around characters are very complex and growing more so as different medias develop. It’s something every author needs to think about.
I have given these issues a lot of thought, from a number of different angles, and I’ve written a little bit about copyright in relationship to genealogical research. That essay is here.