User blog comment:Madmikeyd/Literary Character Vote/@comment-1685813-20091110033402

No. Only those characters who have appeared in PUBLIC DOMAIN COMIC BOOKS, regardless whether they are from literary or mythological sources, should be included here.

There are sites on the Internet devoted to Public Domain characters, including literary and mythology. However, said sites are actually a bit sparse with their info. Some even include superheroes which appear here.