Golass is not very talkative and hardly speaks at all, but during fights he will let out battle cries. He appears to be greedy, much similar to Eldoraggo, which is why he always pays Golass some gold coins before giving him orders.
However, Zoro noticed some other aspects of his true personality, such as when he found out that Golass does not like to fight for money and is ashamed of himself as a swordsman, deep inside.
Golass has immense physical strength. He could destroy a giant rock with his sword and managed to force Zoro back during their fight. He also caught the marines' attention and received a bounty of 8,000,000. While this bounty is not very impressive in comparison to the high tiers of the Grand Line, it's still fearsome for a peaceful place like the East Blue, where they reside.
Befitting his strength, Golass wields a large katana. He is a proficient swordsman, being able to destroy large objects, such as rocks, with his sword. However, he was no match for Zoro and was defeated by him.
He and Roronoa Zoro had a duel before entering Woonan's house.
Although Golass lost, Zoro allowed him to live, realizing that Golass did not want to fight for money, and told him to come back to challenge him if he ever regained his swordsmanship. Golass was last seen being carried away by Eldoraggo's crew. His current whereabouts are unknown.