Gab

Howling Gab is an officer of the Red Hair Pirates.

Appearance
Gab is a large man with shaggy dark brown hair and pointy teeth giving him a lion-like appearance.

Abilities and Powers
Gab is an officer in the Red Hair Pirates, giving him authority over lower-ranking crew. It can be assumed that Gab is a very powerful individual himself, considering how Marine commodore Brannew described the whole crew as having a high average of bounties.

Marineford Arc
Gab showed up alongside his captain and fellow officers of the crew in order to stop the Summit War of Marineford, ready to jump into action if the fighting continued.

From the Decks of the World: The 500,000,000 Man Arc
After the timeskip, Gab and some members of the Red Hair Pirates were at the ruins of a certain island. He was seen reacting positively to the newspaper showing the Straw Hat Pirates' new bounties.

Trivia

 * He is the only known officer of the Red Hair Pirates who does not appear or cannot be recognized among crewmembers who stayed at Foosha Village twelve years ago.