Characters who sometimes act as heroes and sometimes they don't. Typically, this means that they "switch sides" (i.e. go back and forth) more than twice. These types of characters are very common in cartoons. The hero is only corrupted if he or she stops switching sides and decides to stay evil in the end.

None of these characters are Pure Good as it's impossible for an On & Off hero to be such as they are totally impossible to be bad or evil.

Although some of these heroes may never fully corrupt themselves; they are never Pure Good, even if sometimes they come very close.