An abettor is someone who assists or encourages another person in a crime or other illegal activity. An AGENT is a person who acts on behalf of another, such as a lawyer or real estate AGENT. A HELPER is someone who provides assistance to another person. A CONSPIRATOR is someone who takes part in a secret plan to do something unlawful or harmful. A CONFEDERATE is someone who joins with another in a common cause or enterprise. An ASSOCIATE is someone who is connected with another in a business or social relationship. An ASSISTANT is someone who helps another person in a task or job. An ACCOMPLICE is someone who knowingly helps another person commit a crime. An ACCESSORY is someone who assists in a crime without being present at the scene. A PARTNER is someone who shares a common interest or activity with another person. An AIDE is someone who provides assistance to another person. An ALLY is someone who is associated with another in a cause or struggle. A HENCHMAN is someone who is devoted to and works for another person.