* KeepCirculatingTheTapes: There are only two single-disc DVD volumes with random episodes, released only in North America and Japan. The only place you can get the entire series is on the French iTunes store, so good luck purchasing it if you don't live in France.
* TheOtherDarrin:
** Atomic Roger's voice actor, Dwayne Hill, took over as Minimus after Len Carlson passed away.
** Betty's grandfather was voiced by Creator/WilliamShatner in his first appearance, but in his second appearance he was voiced by Gary Krawford.
* ScrewedByTheNetwork: Started off on a primetime spot on CN. But was soon punted around the schedule before ending up on a early morning shift where barely anyone was awake to watch it.
* TalkingToHerself:
** On the rare occasion she does talk, Sarah has the same voice actor as Penelope.
** Betty and her favorite singer, Missy Miss, have the same voice.
* WhatCouldHaveBeen: ''Atomic Betty Redux'' was supposed to be a sequel set when Betty was a teenager however it became stuck in DevelopmentHell before ultimately being rejected.