Tamagon

Tamagon (タマゴン) is member of the Franky Family.

Appearance
He is so extremely fat that his entire body shape looks like a circle.

Past
He joined Zambai's group during some point of his life. Afterwards, Tamagon, along with the rest of Zambai's gang, was given a job by Franky and the whole gang was assimilated into the Franky Family.

Water 7 Arc
After the Straw Hats arrived at Water 7, the Franky Family mugged Usopp and stole 2 million beli from him. When Usopp entered their house to take the money back, the Franky Family beat him up and threw him out. Moments later, they fought against Luffy, Zoro, Sanji, and Chopper. Tamagon and the other Franky Family members were badly beaten. After Franky abducts Usopp later that night, the Franky Family tried to lure out the Straw Hats but caught the attention of CP9. CP9 then beat up the Tamagon and the others before heading to Franky's hideout where they abducted Franky and Usopp. After CP9 left Water 7, Tamagon and the others turn to the Straw Hats for help.

Enies Lobby Arc
After arriving at Enies Lobby, the Franky Family assisted the Straw Hats in fighting the Marines.

Post Enies Lobby Arc
When Franky became a wanted man, the Franky Family tried to convince him to join the Straw Hat crew. Tamagon is the one who stole Franky's speedoes and started the chase through out Water 7. When Franky found them, he managed to defeat them easily, including Tamagon.