Since its inception, this site has a changed a lot. Features have been added, and since removed. That’s why you’ll find links to pages that no longer exist. It’s unfortunate, and in hindsight, it would have been much better to keep the now-obsolete in some sort of archive, than to deleted them.
The cast page is a good example. When this website was in its infancy, I used to maintain a page that contained a snippet of information about the people I frequently wrote about. Friends, acquaintances, and then-girlfriends. The page was removed a long, long time ago, but there are a lot of links to it scattered around. Instead of re-writing history (and having to fix every broken link), I made this page to let you know what you were supposed to be looking at.
I’ve tried to find the Cast page in one of my many old backups, but I haven’t managed to dig it up. The same goes for features like the gallery (but you’ll still find a lot of pictures scattered around), parts of the features section, the moblog (sort of replaced by A Picture A Day), the text ads, the 10,000 days calendar, the guestbook (but please feel free to contact me), the mood-o-meter, and the webcam. They once were, but they are no more.