Gold and Silver Brothers

The were two infamous shinobi from Kumogakure, who were respectively renowned for their great prowess as ninja. The two brothers shared similar appearances to one another, including the presence of distinctive whisker-like marks on their faces, much like those demonstrated by Naruto Uzumaki, due to being swallowed by the Nine-Tailed Demon Fox when they tried to capture it. They survived inside the tailed beast for two weeks and caused a lot of havoc to the beast because of which he had to throw them out. The Second Raikage has referred them as the most reviled criminals in the history of the Kumogakure.

During their lifetime, the siblings played a prominent role in the death of the Second Hokage, as part of the notorious Kinkaku Force. The reputation earned from this act, amongst others, resulted in the brothers being revered as the of Kumogakure throughout the entirety of their village even after their demise.

When the pair are eventually resurrected by Kabuto Yakushi; their attendance alone caused one Kumogakure shinobi who observed them to tremble in fear and almost provoked A, the Fourth Raikage, into completely disregarding his duties as leader of the Allied Shinobi Forces to personally confront the brothers, due to the enormity of his concern over just their presence.

Trivia

 * Both Kinkaku and Ginkaku are likely based on two characters from the Chinese classic "Journey to the West". In this story; the siblings are two demon king brothers, known as the and the, who live in the  on . They possess five treasured tools, called the , the , the  the , and the . Amongst these, the pot and the gourd are capable of sucking in their opponents and melting them, once they are trapped within. Ginkaku is also said to have a technique that allows him to move mountains.