** Jason Marsden (Danger) and Rob Paulsen (Rev) are known for [[WesternAnimation/AdventuresOfTheGummiBears Cavin and Gusto]], [[WesternAnimation/TheMask Skillet and the Mask]] and [[WesternAnimation/AGoofyMovie Max and PJ]].
* RecycledScript: [[spoiler: The second season has two episodes, "Secrets of the Guardian Strike Sword" and "In the Pinkster," which both use the premise of [[SixthRangerTraitor hero's friend is actually a traitor]]. '''Three''' if you count "The Heir Up There".]]
** Massive was originally voiced by Creator/MichaelClarkeDuncan, but he is instead voiced by Creator/KevinMichaelRichardson for his cameo in "The Hunter".
** Mr. Leghorn goes from being voiced by Bill Farmer in "Stop the World, I Want to Get Off" to being voiced by Creator/RobPaulsen in "The Music Villain".
* PlayingAgainstType: Khary Payton, known for voicing heroic/good natured characters like [[WesternAnimation/TeenTitans Cyborg]] and [[WesternAnimation/TheLionGuard Rafiki]] , voices General Deuce, a villain.
* TalkingToHimself: Tech and Slam, both being voiced by Creator/KevinMichaelRichardson.
** The main characters originally had [[http://www.animatedviews.com/wp-content/uploads/2012/11/Original-Loonatics.jpg different designs]]. The most notable differences include Ace Bunny having noticeable buck teeth and Rev Runner being colored blue instead of red.
** Ace, Rev, Tech and Slam were originally named Buzz, Roadster, Slick and Spaz respectively.
** Zadavia was originally named Maxima, as seen in the [[https://www.youtube.com/watch?v=mIIpJPiRjQM teaser]].