Drug dealer

A drug dealer was a person or individual who sold illegal substances called drugs, usually in exchange for money.

Chang Ho tried to sabotage his parents' business to illegally sell crack to members of his gang. (PROSE: The Novel of the Film)

The 456 were considered to be intergalactic drug dealers in the sense that they connected and fed off human children, in order to provide a "hit" similar to recreational drugs made on Earth. (TV: Children of Earth: Day Three)