|“||Noble Eagle! GaoYellow!||„|
Gaku Washio is GaoYellow of the Gaorangers.
Gaku is a 23-year-old 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 naturedly.
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. In most of the episodes, Gaku speaks some English language when in heavy condition.
- GaoBear & GaoPolar
- Beast King Sword
- Gao Jewels
- Eagle Sword
- Feather Cutters