The Morphin Grid


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This article is about a/an ranger in Mighty Morphin Alien Rangers.
Cestro 1
Blue Aquitar Ranger
Gender: Male
Season: Mighty Morphin
Color(s): Blue
Homeworld: Aquitar
First Appearance: Alien Rangers of Aquitar
Last Appearance: Legendary Battle
Number of Episode
Full list of appearances
Actor: Karim Prince
Blue Aquitar Ranger
Alien Blue Ranger 1

Cestro, is the Blue Aquitar Ranger of the Aquitar Rangers. He is an Aquitian that requires waters of Aquitar in order to live.

He is also referred to as Blue Alien Ranger on Earth, as well as Mighty Morphin Alien Blue Ranger- a variation on his alternate in-show label, though it is more in reference to the show itself than a proper label.

Character History

Like his Mighty Morphin counterpart, Billy Cranston, Cestro is a technological genius. When Billy successfully managed to restore his own age by means of the Power Coins before they were destroyed, he and Cestro frequently worked together to find a similar cure for the other Rangers - as well as finding a means to keep the Aquitians hydrated with pure water. In this way, Cestro was the Alien Ranger who received most attention in storylines (alongside Delphine, the team leader).

Cestro had a guest appearance in Power Rangers: Zeo, in which he came to Earth again, seeking Billy's help to fight off a menace on Aquitar called the hydro-contaminators. Billy's trip to Aquitar saw the beginning of the story arc in which he was permanently written out of the show. Indeed, the Aquitian that Billy falls in love with on Aquitar, Cestria, is believed by some to be Cestro's sister or similar relative (though others dispute this because of the different races of the actors playing the two characters).

In Space

During the invasion of the universe by Dark Specter's United Alliance of Evil, Cestro and the other Aquitian Rangers battled Divatox's army on Gratha, where they were defeated. They were later saved by Zordon's Energy Wave. Countdown to Destruction

Super Megaforce


Cestro and the other Aquitian Rangers returned as part of the army of Legendary Rangers that helped the Mega Rangers defeat the Armada once and for all, fighting in a huge battle against hundreds of X Borgs and dozens of Bruisers. Legendary Battle

Blue Aquitar Ranger


Ranger costume

Blue Aquitar Ranger Power

"Blue Aquitar Ranger Power!"



Ranger Key

NinjaBlue Ranger Key

The Blue Aquitian Ranger Key.

The Blue Aquitian Ranger Key is Cestro's personal ranger key. This key along with the majority of the Core Ranger Keys are seen lining the Command Center's interior walls. This key is mainly used by Noah Carver (Super Megaforce Blue) who uses it to fight as the Blue Aquitian Ranger.


  • Cestro is the first male Blue Ranger to have a light blue costume (followed by Jungle Fury Shark Ranger and Dino Charge Aqua Ranger), because in Kakuranger his counterpart Saizou has feminine behaviors (and his speech pattern is similar to that of a girl). Most Blue Rangers after Choujuu Sentai Liveman who are light blue are usually female.
  • Cestro's calm, intelligent personality contrasts with his Sentai counterpart Saizou who is a loud-mouthed, bumbling fool.
  • He is the only Ranger with a light blue costume to not have water-based powers, but he does live on a water planet.
  • Of all the Alien Rangers, Cestro has made the most return appearances.
  • Cestro is the only one of the Alien Rangers to morph individually on screen. All of the others only morphed as a group.

See also

Blue Rangers
Billy (alternate continuity 1995)Billy (2016 comic)Billy (alternate continuity 2017)

Secondary Rangers
NinjorAuricBlue SenturionBlakeShark RangerJames
Billy PuttyPuttyBobbyWilliamBilly CloneStanfordBlue Shadow RangerRobo JustinBlue Creep
Psycho BlueBlue Cyborg RangerEvil Time Force BlueShark Shadow RangerEvil BlakeA-Squad Blue
Evil Blue Mystic RangerEvil Blue Overdrive Ranger

Power Sets
Blue RangerBlue Aquitar RangerZeo Ranger III BlueBlue Turbo RangerBlue Space Ranger
Galaxy Blue RangerBlue Lightspeed RangerTime Force Blue Ranger
Blue Wild Force RangerBlue Wind RangerBlue Dino RangerS.P.D. Blue RangerBlue Mystic Ranger
Blue Overdrive RangerJungle Fury Blue RangerRanger Operator Series BlueBlue Samurai Ranger
Megaforce Blue RangerSuper Megaforce Blue RangerDino Charge Blue RangerDino Charge Aqua Ranger
Dino Charge Talon Ranger
Blue Ranger (movie)


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