Power Ranger Wild Force Yellow Ranger Gao Yellow Helmet 3D print model

Noble Eagle! GaoYellow! (孤高の荒鷲！ガオイエロー！ Kokō no Arawashi! Gao Ierō!)"

―GaoYellow's roll call

Gaku Washio (鷲尾 岳 Washio Gaku) is GaoYellow (ガオイエロー Gao Ierō) and the former leader turned second-in-command of the Gaorangers. For most of the series, he is simply called Yellow (イエロー Ierō) by his teammates.

Gaku is 23 years old at the beginning of Gaoranger.