This happens fairly often with me. The whole back story of the characters my doll crew represent was supposed to be much darker and set in a near-future world following an event called "The Great Collapse". In the photo story I had started over at Junky Spot, you were supposed to gradually discover things about the world that were meant to be disturbing. I had a number of real life upheavals and technical problems (including my snazzy "pro-sumer" camera dying) so that by the time I was able to get back to the story in late summer 2008, world and national events had changed to the point that I decided that nobody would believe I had mapped out my story two years earlier. While I had based everything either on history or some forecasted trends I'd studied and even a number of fictional works, it suddenly seemed more like a comment on current events and prominent people who weren't even on my mind when I created the "world bible" in early 2006.
With a completely revamped back story, many of the characters changed or took on new roles. Some of the dolls and figures were recycled to play new parts. Claire, the apparent author of my blog Claire's Big World was originally supposed to be a secondary character that provided some much needed comic relief in what could have otherwise been a pretty bleak story. She was suppose to have an on-going antagonistic relationship with a character who has since been written out of the story and in general, she was much more of a "dizzy dame". Nowadays, she's a serious character but one who keeps a positive outlook. She's now the skilled and capable "plucky heroine" type rather than a dim-witted hedonist.