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Agent may refer to:

Espionage, investigation, and law[edit]

Arts, entertainment, and media[edit]

Fictional characters[edit]



Other uses in arts, entertainment, and media[edit]

Science and technology[edit]

Biology and chemistry[edit]


  • Agent architecture, a blueprint for software agents and control systems
  • Agent-based model, a computational model for simulating the actions and interactions of individuals
  • Intelligent agent, an autonomous, goal-directed entity which observes and acts upon an environment
  • Software agent, a piece of software that acts for a user or other program
  • User agent, software that is acting on behalf of a user

Other uses[edit]

  • Agent (economics), an actor and decision maker in a model
  • Agent (grammar), in linguistics, the thematic relation of a cause or initiator to an event
  • Agency (philosophy), the capacity of an actor to act in a given environment
  • Agent (psychology), the ability to recognize or attribute agency in humans and non-human animals
  • Agent noun, a word identifying an actor, derived from a word denoting an action
  • Cleaning agent, a substance used to remove bad smells, clutter, dirt, dust, or stains on surfaces

See also[edit]