Portgas D. Ace

Portgas D. Ace (ポートガス・D・エース, Pōtogasu D. Ēsu), also known as Gol D. Ace is a 2nd division commander of the Whitebeard Pirates and the adopted elder brother of Monkey D. Luffy. He was later revealed to be the son of the Pirate King Gol D. Roger who took his mother's surname Portgas after the death of his father. When one of his subordinates Marshall D. Teach killed another crew member, Ace swore to hunt him down only to lose track of him and was eventually handed to the World Government. Ace was sentenced to death which resulted in the Marineford War, an event that took the lives of both Ace and Whitebeard.

Personality
Ace is an intelligent but sometimes impatient young man who always treasures his friends. He treats Whitebeard as his father and the Whitebeard Pirates as his family. He also cares about Luffy to a great extent. He is also somewhat narcoleptic, a trait that became one of the many running gags of the series.

Fighting Style
Ace ate the Mera Mera no Mi fruit which allowed him to turn his body into flames. He greatly mastered his fruit powers and became very skillful at it. He also possesses Haoshoku Haki.