Kelzaks are villains in Power Rangers Ninja Storm and foot soldiers of Lothor. They can be summoned to a certain place by the Personal Alien Manager. They use daggers to fight their enemies and are extremely hyperactive. The Kelzaks were either destroyed by the Ninja Storm Rangers, sent into the Abyss of Evil, or scattered somewhere in the universe.
A red, upgraded version of Kelzaks were the Kelzak Furies, created by Beevil, Marah's friend. They are three times stronger than the regular Kelzaks. Like regular Kelzaks, their fate is unknown. The Kelzaks can be seen in Power Rangers: Super Legends.