A person who collects, transports, or distributes illicit money, especially for the purpose of bribery, extortion, or the making of other improper payments.
A bookmaker.
A caddy.
An assistant to a police detective, most commonly in the British police force.
An officer assigned to travel with the president and carry the "nuclear football".
A prominent fundraiser for a political party or similar cause
A man who travels, often within a certain territory, soliciting orders or selling goods.