5-BASTILLE
Bastille wears a gray metal mask with fourteen (ten in the anime before the timeskip) eye-holes and two long, curved bull horns and his face has never been fully exposed. His long orange hair falls to the front of his chest and the rest of his hair can be seen going down his back.
4-KILLER
Killer has long wild blonde hair that falls down to his thighs. He wears a plain, white and light-blue full-head helmet with many holes in it, and what look like modern headphones on both the sides.
Killer’s helmet has been noted to bear resemblance to the French musician Guy-Manuel de Homem-Christo’s helmet from Daft Punk. Daft Punk was made famous in Japan by their animated film Interstella 5555: The 5tory of the 5ecret 5tar 5ystem, during which time the duo were wearing outfits designed to make them look like robots.
3-DUVAL
Duval is a very large man who was originally introduced wearing a large iron mask, with long red tufts attached to it, giving him his epithet Iron Mask Duval.
2-KING THE WILDFIRE
King wears mostly dark clothes that completely cover his body, including a mask over his face and a spiked hat with goggles on it. Flames also appear to be emitting from the back of his head.
1-SOGEKING
Sogeking is Usopp’s alter-ego that he developed during the Water 7 and Enies Lobby Arcs after he left the crew. He hastily disguised himself in a mask and cape and began calling himself “Sogeking”. Sogeking’s trademark mask is from the Sea Train Puffing Tom: as Sanji leaves the last car of the Sea Train, the mask is visible sitting in an open suitcase. It was probably left over from the mask festival that was taking place on a nearby island at the time. The Sogeking costume is only complete when Usopp incorporates his favorite goggles into the mask’s eye holes.
