Smoker

Smoker is a character from One Piece

History
Smoker the White Hunter is a Marine officer stationed at the G-5 base. He was first introduced as a captain (大佐 Taisa?) in Loguetown, where he made it his mission to capture Luffy,[3] and was later promoted to the rank of commodore (准将 Junshō?) ,[4] due to the events in Alabasta.[7] At some point during the timeskip, he was promoted to the rank of Vice Admiral (中将 Chūjō?) .[2]

Due to his actions against Luffy at Loguetown, Smoker can be considered as the main antagonist of Loguetown Arc.

More Information: http://onepiece.wikia.com/wiki/Smoker