* InternationalCoproduction: Co-produced between Jetix Europe and YTV.
** Wendy and John are both voiced by Creator/TabithaStGermain.
** Mr. Fusster, Mark and Roy are both voiced by Creator/IanJamesCorlett. %%Ian James Corlett is NOT the voice of Hugo Smith: https://twitter.com/IanJames007/status/441359255208067072%%
* WhatCouldHaveBeen: [[http://3.bp.blogspot.com/_AYFpxzVv5Sg/TOqQqYE6nlI/AAAAAAAAAJA/VsGxVYpa3zA/s1600/cathysmithconceptart.jpg The three concept arts for Cathy's alien form]] were very different.
* In 2010, ''Monster Buster Club'' is the second most popular kid's show on [=TF1=] (channel in France), next to ''WesternAnimation/TotallySpies''