These main characters are the focus of most videos and the central plot. They have major speaking parts and create their own video blogs.
These supporting characters have been seen in many of the videos. Some of them videoblog, while others are not videobloggers but still contribute to the plot.
For a variety of reasons, these once main, but now former characters, no longer appear in the series.
These guest characters usually appear in one or two videos and (for the most part) do not post blogs. Most of them only have minor significance to the plot.