Nosgarl

Nosgarl is an infamous New World pirate who allied himself with Whitebeard.

Appearance
Nosgarl is an aged man with light hairs resembling horns, glasses and a hooked nose. He wears an old-fashioned pirate dress, with a mantle and heels. As many characters, his legs are disproportionately short and slender compared to his main body.

Personality
Not much is known about Nosgarl's personality other than that he is very loyal to Whitebeard as he was willing to risk his own life trying to save Ace from execution.

Abilities and Powers
Nosgarl is a fearsome pirate who has managed to achieve an infamous reputation in the New World, and he made an alliance with Whitebeard.

History
Some time prior to the current storyline, Nosgarl became a known pirate in the New World, and allied himself with Whitebeard.

Marineford Arc
When Portgas D. Ace was to be executed at Marineford, Nosgarl and his crew joined forces with the Whitebeard Pirates to save him.

Post-War Arc
He, along with the rest of the crew, probably attended the funeral of Whitebeard and Ace on a undisclosed location somewhere on the New World.

Major Battles
Whitebeard Pirates and their allies vs. the Marines and Shichibukai

Trivia

 * As for Forliewbs and Sleepy, Nosgarl is a Whitebeard Pirates' alliate revealed only in the One Piece Green: Secret Pieces and never appeared in the manga.