Caesar Clown

Caesar Crown, also referred as Master by his underlings, is a former bounty hunter and former colleague of Vegapunk. Smoker said he was also the leading mass murder weapon expert.

Appearance
His appearance is that of a gassy vapour, however he does seem to be able to drink liquids as he is often seen with a cocktail glass.

Personality
He appears to have a grudge against Vegapunk, as well as a somewhat rational personality, as shown when he hid from the Marines instead of trying to fight them immediately.

Abilities and Powers
Caesar being made of a vapor like form is able to float and go inside places that no normal being can as he was seen hiding inside some flasks when he was informed that the Marines were nearby.