Douglas Bullet is a large man with broad shoulders. His hair is slicked back into a cowlick. He wears a collared buttoned shirt that is decorated with medals and insignia, some of which bear the initials "GF". He also wears a belt, pants, and boots, as well as earphones on his head and a feathery plume that goes down his back He has a massive red scar that goes down from the left side of his face to the side of his chest and upper arm.
As a young man, Bullet had a smaller frame and a very short haircut. Some years after that, he grew bigger and his hair became much longer. He lacked his scar at both of these points.
Bullet ate the Gasha Gasha no Mi, a Paramecia-type Devil Fruit that allows him to manipulate and merge objects like iron and weapons at will. With this fruit's power, he can make a large variety of mechanical creations.
Douglas Bullet was once a member of the Marines, but resigned after a certain incident. Over 24 years ago, he sailed with the Roger Pirates as a member. However, he was eventually captured by the World Government and imprisoned in Impel Down.