:I know Kubo seems to want to create an infinite row of characters but remember that Wikipedia is not an indiscriminate collection of information... So it's not recommended to include every single character when it just appeared. Does the character makes an impact on plot or is at least a frequent recurring character? I would include it. Does the character only makes brief appearances or isn't related to the plot or other characters? I wouldn't include. I would be even more cautious when including anime-exclusive characters. Making groups of minor characters is also a possibility (like what was did for the Sound Four and Taka on List of Naruto characters) when the characters are not that relevant individually but is part of an important group... Just my opinion, though.