This article is about a/an ranger in Hyakujuu Sentai Gaoranger.
"Noble Eagle! GaoYellow!"
―GaoYellow's roll call[src]

Gaku Washio (鷲尾 岳 Washio Gaku) is GaoYellow (ガオイエロー Gao Ierō) of the Gaorangers.



Gaku is a 23-year-old (33 as for the Great Legend War in Gokaiger) former Self Defense Force pilot. He was the first Gaoranger to be chosen who worked a year alone with only Tetomu. Tetomu recruited him during a flight mission, and he became missing in action. Because of this, he bleached his hair to become less recognizable. As a pilot, he is good at skydiving and English and his hobby is playing the ukulele. At first, Gaku was very serious and humorless, he was upset that Kakeru has been chosen as leader instead of him and he was demoted to second-in-command. As time went on, Gaku opened up, and became especially close to Kakeru, often teasing him good nature.

Gaku is the one who insisted that the Gaorangers refer to each other by color and not use their personal names. Being his Power Animal a bird, Gaku refuses to eat bird meat (he seems to be the only one to have this tendency; neither Soutarou nor Kai have shown any problem eating cow meat and fish, respectively). He is in charge of forming any leftover parts for the Gaorangers' mecha formations. After the final battle, he returned to the Air Force and his natural hair color. Gaku has a tendency to speak in English with a clear Japanese accent still in his words.

Gaoranger vs. Super SentaiEdit

to be added Hyakujuu Sentai Gaoranger vs. Super Sentai

Gaoranger vs. GorengerEdit

to be added Hyakujuu Sentai Gaoranger vs. Himitsu Sentai Gorenger

Hurricaneger vs. GaorangerEdit

Gaku, along with the other core Gaorangers got their powers stolen by the Space Ninja Group Jakanja and were held as hostage. His team was saved by the Hurricanegers, and got their powers back when Tsukumaro arrives. Ninpu Sentai Hurricaneger vs. Gaoranger


Legend WarEdit

Years later, Gaku fought alongside not only his own team, but every single Sentai ranger in existence, against the Empire of Zangyack when it attacked the Earth in the Great Legend War. After fighting against hundreds of Gormin and their Zgormin commanders. AkaRenger noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada. The GaoYellow powers are later used by Luka Millfy via the Ranger Keys. Ep. 1: The Space Pirates Appear Gokaiger Goseiger Super Sentai 199 Hero Great Battle

Farewell Space PiratesEdit

After the Gokaigers defeated the Zangyack, Marvelous returned the Ranger Keys to their original owners. It is assumed Gaku and his team have their powers back. Final Ep.: Farewell Space Pirates

Super Hero TaisenEdit

File:Decade vs Gekirangers, Carrangers and Gaorangers.jpg
File:Dimensional wall - Gingaman, Megaranger, Gaoranger, Timeranger, GoGo-V.jpg

Gaku, alongside his team (bar GaoSilver), among the majority of the Super Sentai heroes, was caught up in the "Super Hero Taisen" incident which eventually resulted in the Super Sentai teams and Kamen Riders joining forces to defeat both Dai-Zangyack and Dai-Shocker. During the final battle, he is seen fighting a Shocker Combatman. Kamen Rider × Super Sentai: Super Hero Taisen

Zyuohger vs. NinningerEdit

File:All 40 Super Sentais.png

GaoYellow appeared with his team among the first 38 Super Sentai whom collectively empowered Wild Tousai Shuriken King in its fight against the titanic Gillmarda, granting the Ninningers and Zyuohgers the power to perform the Zyuoh Ninnin Super Sentai Burst which destroyed Gillmarda with the combined power of all 40 Super Sentai. Doubutsu Sentai Zyuohger vs. Ninninger: Message from the Future from Super Sentai

Super Sentai Strongest BattleEdit

Gaku joined the Super Sentai Strongest Battle as a member of Flying Team. It’s unknown whether he participated in any of the matches, but his team was eliminated after losing the second round against the Swordsman Team.

Super Sentai Versus Series TheaterEdit

Gaku's appearances in the "Versus Series", Gaoranger vs. Super Sentai and Hurricaneger vs. Gaoranger, are featured in the Super Sentai Versus Series Theater, hosted by the heroes of Tensou Sentai Goseiger. Moune (Gosei Yellow) also dresses as Gaku in the Gaoranger cosplay.

Video game appearancesEdit

Gaoranger video gameEdit

GaoYellow appears with his team in the Hyakujuu Sentai Gaoranger video game.

Super Sentai Battle: Dice-OEdit

File:GaoYellow (Dice-O).jpg
  • Profile
Gaku Washio/GaoYellow: to be added

Super Sentai Battle BaseEdit

GaoYellow is among the vast pantheon of Rangers which are available in the mobile game Super Sentai Battle Base.

Super Sentai Legend WarsEdit

File:GaoYellow Card in Super Sentai Legend Wars.png

GaoYellow appears with his team among all Sentai in the mobile game Super Sentai Legend Wars.



Power AnimalsEdit


Ranger KeyEdit

File:GaoYellow Ranger Key.jpg

The GaoYellow Ranger Key (ガオイエローレンジャーキー Gao Ierō Renjā Kī) is Gaku Washio's personal Ranger Key and what became of his powers after he along with the rest of the 34 Super Sentai sacrificed their powers to end the Great Legend War.

This key along with the majority of the Ranger Keys were collected by the Red Pirates and later used by the Gokaigers. The GaoYellow Ranger Key was mainly used by Luka Millfy (Gokai Yellow), who used it to fight as GaoYellow. It was also used by Captain Marvelous (Gokai Red) on one occasion.

The Gaoranger keys, along with all the Ranger Keys of the first 33 Super Sentai, were briefly taken by the Black Cross King and turned into Ranger puppets that were fought by the Gokaigers and the Goseigers. Splitting up, the puppet GaoYellow was defeated as part of a group of surviving Yellow warrior keys by Gokai Yellow and Super Gosei Yellow. Gokaiger Goseiger Super Sentai 199 Hero Great Battle

After Zangyack were finally defeated, the Gokaigers gave the Ranger Keys back to their rightful owners. Gaku received his key and became GaoYellow once more. Final Ep.: Farewell Space Pirates



File:Copy Sentai Copyranger.jpg

A copy of GaoYellow was created by Copy Org as part of the Copy Sentai Copyranger. Org copies of the Gaorangers, Copy Org created these clones with horns, they were killed by the special attacks of the Gaorangers. Quest 12: Which is the Real One!?

File:Shade Rangers.jpg

A shadow-clone GaoYellow was created by Dorodoro's ninja powers as part of the Shade Rangers. The Gaorangers could not destroy these shadows without killing themselves in the process. After GaoRed used his Falcon Summoner to kill Dorodoro, the Shaderangers then disappeared. Quest 42: The Org Ninja Invasion! Quest 43: The Lion Burns Hot

Fifth Spear, Sargain disguised himself as Gaku as well as using his G-Phone to become GaoYellow along with four other Seven Dark Spears to make the Hurricanegers and Gouraigers believe the Gaorangers were evil. Ninpu Sentai Hurricaneger vs. Gaoranger

Behind the scenesEdit


Gaku Washio is portrayed by Kei Horie (堀江 慶 Horie Kei). As GaoYellow, his suit actor was Yasuhiro Takeuchi (竹内 康博 Takeuchi Yasuhiro).


  • Gaku shares his first name with Gaku Hoshikawa (FiveRed) of Chikyuu Sentai Fiveman.
  • His surname literally means "eagle" in Japanese.
    • Interestingly, a female Eagle themed Ranger would go by the designation of Washi Pink 16 years after him.
      • Interestingly, she would be played by the same actress as Gokai Yellow
  • He is the last Male Sentai Yellow with a female counterpart
    • Excluding his successor, male Yellow Rangers would only appear on ranger teams with two female rangers in future adaptations.
  • He is the first Yellow ranger to be a leader (but later resigned), followed by Ran Uzaki.


See alsoEdit

External linksEdit

D3fy101-2bef7821-d483-4463-b814-0e626e5b4054 Hyakujuu Sentai Gaoranger
Kakeru Shishi - Gaku Washio - Kai Samezu - Sotaro Ushigome - Sae Taiga - Tsukumaro Ogami
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Turbine Org - Plugma Org - Wire Org - Camera Org - Temple Bell Org - Tire Org - Wedding Dress Org - Boat Org - Signal Org - Cell Phone Org - Bulldozer Org - SamuraiDoll Org - Copy Org - Freezer Org - Vacuum Cleaner Org - Bus Org - Clock Org - Glasses Org - Bike Org - Human Body Specimen Org - Lawnmower Org - Chimera Org - Karaoke Org - Vase Org - Bowling Org - Tombstone Org - Charcoal Grill Org - Blacksmith Org - Magic-Flute Org - Juggling Org - Animal Tamer Org - Monitor Org - Tinplate Org - Kurushimemasu Org - New Year's Org - Steam Engine Org
Yellow Rangers
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Secondary Rangers
EAGLE agentDeathdark YellowGinga YellowShadow Yellow OwlGolemPrevious KirinRanger
Copy KirinRangerKazu's grandsonZokuYellowNeziYellowCopy TimeYellowCopyYellow
Shade GaoYellowSargainFake HurricaneYellowTensaikikkuMugiEvil MagiYellow
Evil Bouken YellowWater Pollution Minister KegalesiaYoko

Power Sets
KirengerDenziYellowVulPantherGoggleYellowDynaYellowYellow4Yellow FlashYellow Mask
Yellow LionYellow TurboFiveYellowYellow OwlTigerRangerKirinRangerNinjaYellow
OhYellowYellow RacerMegaYellowGingaYellowGoYellowTimeYellowGaoYellowHurricaneYellow
AbareYellowDekaYellowMagiYellowBouken YellowGekiYellowGo-On YellowShinken Yellow
Gosei YellowGokai YellowYellow BusterYellow RabbitToQ 3gouKiNingerZyuoh LionKajiki Yellow

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