Master RJ, the Purple Wolf Ranger, is the only Power Ranger to have used the martial arts style of Muay Thai. He is also 1 of 2 Wolf Rangers in the entire franchise the first being Merrick Baliton from Power Rangers Wild Force.
This is the final series that aired on Jetix and Toon Disney, due to Toon Disney and Jetix changing to Disney XD.
Only the third season since Rangers in Space to not have an official crossover episode with the previous Ranger Group. The first two were Power Rangers Ninja Storm (2003) and Power Rangers Mystic Force (2006).