* FandomNod: The ending of the manga, which includes a group photo containing nearly every single demon who appeared in the series.
* HeyItsThatVoice:
** Gash/Zatch Bell's American voice actress is Debi Derryberry, also known as the voice of Jimmy Neutron. Creator/IkueOtani voices him in the Japanese version; coincidentally, she's known for voicing another [[{{Anime/Pokemon}} anime protagonist who uses lightning a lot.]]
** Tio/Tia's voice actor in the English dub is Creator/MelissaFahn, who also did the voice of [[InvaderZim Gaz]] and [[Franchise/{{Digimon}} Rika]].
** [[SaintSeiya Aquarius Camus]] is Dr. Riddles.
** Zatch and Zeno's Japanese voice actors are [[Creator/IkueOtani Pikachu]] and [[UraraTakano Raichu]] [[{{Anime/Pokemon}} respectively]]. [[spoiler: Given that they're brothers, this was quite the casting call.]]
** In the English version Zofis is [[WesternAnimation/XiaolinShowdown Wuya.]]
* OfficialFanSubmittedContent: A card was decided by a contest.
* TheOtherDarrin: Zatch's seiyuu switched in the final ten episodes due to Creator/IkueOtani's maternity leave.
* TalkingToHimself: The dub was cancelled before the Faudo arc, so this is averted for Zatch and Zeno.