Ranger: Blue Aquitian Ranger
Actor: Karim Prince
First Appearance: “Alien Rangers of Aquitar: Part 1″
Last Appearance: “Countdown to Destruction: Part 2”
Sentai: Ninja Sentai Kakuranger
Cestro is the technical adviser of the Aquitian Rangers and the Blue Aquitian Ranger. Due to him being an Aquitian, he needs a large amount of water to survive and must stay hydrated to be at full strength.
Blue Battle Borg
The Blue Battle Borg is the personal zord of the the Blue Aquitian Ranger and has a striking resemblance to the Blue Shogunzord. The Blue Battle Borg has a direct telepathic link to the Blue Aquitian Ranger so there is no need for him to pilot it. While the Blue Battle Borg does not combine with the other Battle Borgs, it makes up for that in its speed and strength capabilities.
Cestro had access to the Blue Shogunzord during his stay on Earth. In its base form the Blue Shogunzord uses a shaft in battle and can combine with the other Shogunzord to form the right arm of the Shogun Megazord.
The Aquitian Saber is the primary weapon for all the Aquitian Rangers.
Cestro can summon a stream of water to submerge his enemies in water.