The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
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- Cast Lists by Volume (25 members)
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- Characters in "A Mechanicsburg Solstice Story" (8 members)
- Characters in "Agatha Heterodyne and the Electric Coffin" (6 members)
- Characters in "Fan Fiction" (4 members)
- Characters in "Revenge of the Weasel Queen" (9 members)