Goldberg is a very rotund giant with dark orange hair and a wide mouth. He wears green plaid suspenders with dark stripes, a grey cape with a flower buckle, and a viking helmet, and lacks a shirt. He also wears a belt across his chest. He holds a blue and yellow striped shield, with eyes and a mouth with a very large tongue.
The following events are Non-Canon and therefore not considered part of the Canon story.
As a newborn, he had shorter light brown hair and was wrapped in a yellow cloth in the anime.
As a giant, Goldberg likely possesses a large amount of physical power. Along with the rest of his crewmates, he was an S-Class mercenary for Buggy's Pirate Dispatch Society, being recognized for his skilled mercenary work. As the cook for his crew, he likely has some degree of culinary expertise.
Goldberg carries a mace whose length rivals his height; it has a very long handle that balloons closer to the end. He also carries a relatively small shield with vertical stripes and a face on it.
Goldberg was born in a village in Elbaf around 63 years before the present day. His birth was celebrated at the start of the 12-day fast leading up to the Winter Solstice.
Many years later, Goldberg and three other giants joined Hajrudin in his goal to revive the Giant Warrior Pirates. The crew became mercenaries for the pirate dispatch organization, Buggy's Delivery. During the duration of their service, the crew became the five top earners of the organization, as well as earning the rank of S-Class soldiers.
Four Emperors Saga
The Stories of the Self-Proclaimed Straw Hat Grand Fleet
Hajrudin pledged his crew's allegiance to the Straw Hat Pirates, and when he returned to Karai Bari Island, the New Giant Warrior Pirates informed Mohji of their resignation from Buggy's Delivery before setting out to sea in the Naglfar as members of the Straw Hat Grand Fleet.