In law enforcement

• Special agent
  Special agent
  Special agent is usually the title for a detective or investigator for a state, county, municipal, federal or tribal government. An agent is a worker for any federal agency, and a secret agent is one who works for an intelligence agency....
  
  , title for a detective or investigator for a state, county, municipal, federal or tribal government
• Secret agent, spy involved in espionage
  Espionage
  Espionage or spying involves an individual obtaining information that is considered secret or confidential without the permission of the holder of the information. Espionage is inherently clandestine, lest the legitimate holder of the information change plans or take other countermeasures once it...
  
  . See agents in espionage.

In law

• Agent (law), in commercial law, is a person who is authorized to act on behalf of another (called the principal) to create a legal relationship with a third party
  • C & F Agent abbreviated from Clearing and Forwarding Agent (IN
    India
    India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
    
    ).
  • Election agent
    Election agent
    In elections in the United Kingdom, as well as in certain other similar political systems such as India's, an election agent is the person legally responsible for the conduct of a candidate's political campaign and to whom election material is sent to by those running the election. In elections in...
    
    , person legally responsible for the conduct of a candidate's political campaign (UK)
  • Free agent
    Free agent
    In professional sports, a free agent is a player whose contract with a team has expired and who is thus eligible to sign with another club or franchise....
    
    , sports player whose contract with a team has expired
  • Literary agent
    Literary agent
    A literary agent is an agent who represents writers and their written works to publishers, theatrical producers and film producers and assists in the sale and deal negotiation of the same. Literary agents most often represent novelists, screenwriters and major non-fiction writers...
    
    , person who represents writers and their written works to publishers, theatrical producers and film producers
  • Press agent
    Press agent
    A press agent, or flack, is a professional publicist who acts on behalf of his or her client on all matters involving public relations. Press agents are typically employed by public personalities and organizations such as performers and businesses...
    
    , professional publicist who acts on behalf of his or her client on all matters involving public relations
  • Sports agent
    Sports agent
    A sports agent procures and negotiates employment and endorsement contracts for an athlete.In return, the sports agent generally receives between 4 and 10% of the athlete's playing contract, and 10 to 20% of the athlete's endorsement contract, though these figures vary...
    
    , person who procures and negotiates employment and endorsement deals for a player
  • Talent agent
    Talent agent
    A talent agent, or booking agent, is a person who finds jobs for actors, authors, film directors, musicians, models, producers, professional athletes, writers and other people in various entertainment businesses. Having an agent is not required, but does help the artist in getting jobs...
    
     or booking agent, person who finds jobs for actors, musicians and models, etc., in various entertainment
    Entertainment
    Entertainment consists of any activity which provides a diversion or permits people to amuse themselves in their leisure time. Entertainment is generally passive, such as watching opera or a movie. Active forms of amusement, such as sports, are more often considered to be recreation...
    
     businesses
  • Foreign agent
    Foreign agent
    A foreign agent is anyone who actively carries out the interests of a foreign country while located in another host country, but generally outside the protections offered to those working in their official capacity for a diplomatic mission. Foreign agents may be citizens of the host country...
    
    , person representing the interests of foreign powers, mandated by the Foreign Agents Registration Act
    Foreign Agents Registration Act
    The Foreign Agents Registration Act is a United States law passed in 1938 requiring that agents representing the interests of foreign powers be properly identified to the American public. The act was passed in response to German propaganda in the lead-up to World War II...
    
     to be identified to the American public
  • Patent agent or patent attorney
    Patent attorney
    A patent attorney is an attorney who has the specialized qualifications necessary for representing clients in obtaining patents and acting in all matters and procedures relating to patent law and practice, such as filing an opposition...
    
    , person who has the specialized qualifications necessary for representing clients in obtaining patents and acting in all matters and procedures relating to patent law and practice
  • Real estate agent or real estate broker
    Real estate broker
    A real estate broker, real estate agent or realtor is a party who acts as an intermediary between sellers and buyers of real estate/real property and attempts to find sellers who wish to sell and buyers who wish to buy...
    
    , person who acts as an intermediary between sellers and buyers of real estate
  • Travel agent, person who works on behalf of a travel agency
    Travel agency
    A travel agency is a retail business that sells travel related products and services to customers on behalf of suppliers such as airlines, car rentals, cruise lines, hotels, railways, sightseeing tours and package holidays that combine several products...
    
    
  • Tuition agent, person who works on behalf of a tuition agency
    Tuition agency
    A tuition agency is a commercial organisation which specialises in introducing tutors to students requiring help in the academic area. Tuition agencies exist largely due to the problems parents and students face in finding a specialist who can help them with the study of one or more specific...
    
    , specializing in introducing tutors to students requiring help in the academic area
  • Yacht agent or yacht broker
    Yacht broker
    A yacht broker is a specialist agent who acts as a representative for the sale of a yacht or boat. The yacht broker is paid an agreed commission the sale price of a yacht and to this end markets the yacht for sale, fields buyer interest and act as a ‘middle man’ in the negotiations.- Yacht Broker...
    
    , specialist who acts as a representative for the sale of a yacht or boat

In economics

• Agent (economics)
  Agent (economics)
  In economics, an agent is an actor and decision maker in a model. Typically, every agent makes decisions by solving a well or ill defined optimization/choice problem. The term agent can also be seen as equivalent to player in game theory....
  
  , actor and decision maker in a model
  • Homo economicus
    Homo economicus
    Homo economicus, or Economic human, is the concept in some economic theories of humans as rational and narrowly self-interested actors who have the ability to make judgments toward their subjectively defined ends...
    
    , concept in some economic theories of humans as rational and broadly self-interested actors
  • As discussed by economists as the principal–agent problem, agent means anyone supposed to act in the interests of the principal, especially insofar as the actions of the agent cannot be completely monitored by the principal. In this sense agent includes such diverse and common roles as auto mechanic, a doctor, a lawyer, an investment advisor, any fiduciary, a contractor, any employee (from the point of view of the employer), and a political representative in a democracy.
• Agent-based computational economics
  Agent-Based Computational Economics
  Agent-based computational economics is the major aspect of computational economics that studies economic processes, including whole economies, as dynamic systems of interacting agents. As such, it falls in paradigm of complex adaptive systems...
  
  , computational study of economic processes modeled as dynamic systems of interacting agents
• Rational agent
  Rational agent
  In economics, game theory, decision theory, and artificial intelligence, a rational agent is an agent which has clear preferences, models uncertainty via expected values, and always chooses to perform the action that results in the optimal outcome for itself from among all feasible actions...
  
  , entity which has clear preferences, models uncertainty via expected values, and always chooses to perform the action that results in the optimal outcome for itself from among all feasible actions
• Representative agent
  Representative agent
  Economists use the term representative agent to refer to the typical decision-maker of a certain type ....
  
  , refers to the typical decision-maker of a certain type

In medicine

• A pharmacological agent
  Active ingredient
  An active ingredient is the substance of a pharmaceutical drug or a pharmaceutical ingredient and bulk active in medicine; in pesticide formulations active substance may be used. Some medications and pesticide products may contain more than one active ingredient...
  
   is a chemical substance with pharmacological or biological activity, i.e., a pharmaceutical drug

In chemistry and warfare

• Agent Orange
  Agent Orange
  Agent Orange is the code name for one of the herbicides and defoliants used by the U.S. military as part of its herbicidal warfare program, Operation Ranch Hand, during the Vietnam War from 1961 to 1971. Vietnam estimates 400,000 people were killed or maimed, and 500,000 children born with birth...
  
  , code name for an herbicide and defoliant
• Biological agent
  Biological agent
  A biological agent — also called bio-agent or biological threat agent — is a bacterium, virus, prion, or fungus which may cause infection, allergy, toxicity or otherwise create a hazard to human health. They can be used as a biological weapon in bioterrorism or biological warfare...
  
  , infectious disease or toxin that can be used in bioterrorism or biological warfare
• Chemical warfare
  Chemical warfare
  Chemical warfare involves using the toxic properties of chemical substances as weapons. This type of warfare is distinct from Nuclear warfare and Biological warfare, which together make up NBC, the military acronym for Nuclear, Biological, and Chemical...
  
  , involves using the toxic properties of chemical substances as weapons to kill, injure, or incapacitate an enemy
  • Blister agent
    Blister agent
    A blister agent, or vesicant, is a chemical compound that causes severe skin, eye and mucosal pain and irritation. They are named for their ability to cause severe chemical burns, resulting in painful water blisters on the bodies of those affected...
    
     or vesicant, chemical compound that causes severe skin, eye and mucosal pain and irritation
  • Blood agent
    Blood agent
    A blood agent is a toxic chemical agent that affects the body by being absorbed into the blood. They are fast-acting, potentially lethal poisons that typically manifest at room temperature as volatile colorless gases with a faint odor. Blood agents are either cyanide- or...
    
     or cyanogen agent, chemical compound carried by the blood for distribution throughout the body
  • Incapacitating agent
    Incapacitating agent
    The term incapacitating agent is defined by the U.S. Department of Defense asLethal agents are primarily intended to kill, but incapacitating agents can also kill if administered in a potent enough dose, or in certain scenarios....
    
    , agent that produces temporary physiological or mental effects, or both, which will render individuals incapable of concerted effort in the performance of their assigned duties
  • Nerve agent
    Nerve agent
    Nerve agents are a class of phosphorus-containing organic chemicals that disrupt the mechanism by which nerves transfer messages to organs...
    
     or nerve gases, class of phosphorus-containing organic chemicals (organophosphates) that disrupt the mechanism by which nerves transfer messages to organs
  • Pulmonary agent
    Pulmonary agent
    A pulmonary agent is a chemical weapon agent designed to impede a victim's ability to breathe. They operate by causing a build-up of fluids in the lungs which then leads to...
    
     or choking agent, chemical weapon agent designed to impede a victim's ability to breathe
  • Riot control agent, less-lethal lachrymatory agents used for riot control

In linguistics

• Agent (grammar)
  Agent (grammar)
  In linguistics, a grammatical agent is the cause or initiator of an event. Agent is the name of the thematic role...
  
  , the participant of a situation that carries out the action in this situation; also the name of the thematic role (also known as the thematic relation)
• Agent noun
  Agent noun
  In linguistics, an agent noun is a word that is derived from another word denoting an action, and that identifies an entity that does that action. For example, "driver" is an agent noun formed from the verb "drive". The endings "-er", "-or", and "-ist" are commonly used in English to form agent...
  
   (or nomen agentis), word that is derived from another word denoting an action, and that identifies an entity that does that action

In computer science and artificial intelligence

• Agent architecture
  Agent architecture
  Agent architecture in computer science is a blueprint for software agents and intelligent control systems, depicting the arrangement of components...
  
  , blueprint for software agents and intelligent control systems, depicting the arrangement of components
• Agent-based model, computational model for simulating the actions and interactions of autonomous individuals with a view to assessing their effects on the system as a whole
• Intelligent agent
  Intelligent agent
  In artificial intelligence, an intelligent agent is an autonomous entity which observes through sensors and acts upon an environment using actuators and directs its activity towards achieving goals . Intelligent agents may also learn or use knowledge to achieve their goals...
  
  , autonomous entity which observes and acts upon an environment and directs its activity towards achieving goals
• Software agent
  Software agent
  In computer science, a software agent is a piece of software that acts for a user or other program in a relationship of agency, which derives from the Latin agere : an agreement to act on one's behalf...
  
  , piece of software that acts for a user or other program in a relationship of agency
  • Forté Agent
    Forté Agent
    Forté Agent is an email and Usenet news client used on the Windows operating system. Agent was conceived, designed and developed by Mark Sidell and the team at Forté Internet Software in 1994 to address the need for an online/offline newsreader which capitalized on the emerging Windows GUI framework...
    
    , email and Usenet news client used on the Windows operating system
  • User agent
    User agent
    In computing, a user agent is a client application implementing a network protocol used in communications within a client–server distributed computing system...
    
    , the client application used with a particular network protocol

In culture and entertainment

• James Bond
  James Bond
  James Bond, code name 007, is a fictional character created in 1953 by writer Ian Fleming, who featured him in twelve novels and two short story collections. There have been a six other authors who wrote authorised Bond novels or novelizations after Fleming's death in 1964: Kingsley Amis,...
  
  , most famous secret agent, fictional character by Ian Fleming.
• Agent 47
  Agent 47
  Agent 47 is a fictional character and the main protagonist in the Hitman video-game series. Created by IO Interactive, the character was developed around David Bateson, who also provided the in-game voice...
  
  , fictional character and protagonist in the Hitman video-game series.
• Agent 212
  Agent 212
  Agent 212 is the name of a humorous Belgian comic about a large police officer. The comic series is written by Raoul Cauvin, and drawn by Daniel Kox, and has been published in the Spirou/Robbedoes magazine since 1975. Dupuis has also published 26 comic books in French and Dutch featuring the...
  
  , name of a humorous Belgian comic about a large police officer
• Agent (The Matrix)
  Agent (The Matrix)
  Agents are a group of characters in the Matrix series. They are sentient computer programs, displaying high-level Artificial Intelligence, and are representatives, or "Agents", of the main antagonists within the Matrix fictional universe. They are guardians within the computer-generated world of...
  
  , group of characters in the series
• Agent (video game)
  Agent (video game)
  Agent is a video game currently in development by Rockstar North for the PlayStation 3. Sony announced that Rockstar was working on a new franchise for the PlayStation 3 in July 2007, but details of the project, including its title, were not announced until June 2009 during the Sony press...
  
  , currently in development by Rockstar North for the PlayStation 3
• The Agent (film)
  The Agent (film)
  -Cast:* Larry Semon - Federal Agent* Lucille Carlisle - Federal Agent, Undercover* Oliver Hardy - Don Fusiloil * Al Thompson* Kittie Rinehart* William Hauber* Robert McKenzie* Harry DeRoy* Alfred Wertz* Dan Maines...
  
  , 1922 film featuring Oliver Hardy
• Secret Agent (1936 film), British film directed by Alfred Hitchcock
• Agent, version of The Mole (TV series) that aired in Poland on TVN
• The Agents, superhuman characters in Seven Samurai 20XX
  Seven Samurai 20XX
  is a PlayStation 2 game released by Sammy Studios in 2004. Its story and concept are based upon Akira Kurosawa's 1954 movie Seven Samurai. Rights for the production of the game were given by the Kurosawa production, with character designs by French artist Mœbius and the composition of the music by...
  
  
• Agents (band)
  Agents (band)
  Agents is a Finnish band formed in 1979, playing rautalanka, schlager and rock'n'roll music. The head figure and musical director of the band is solo guitarist Esa Pulliainen.-Founding of Agents:...
  
  , a Finnish schlager/rock'n'roll band
• The Agents
  The Agents
  The Agents were a post-punk band formed in 1980 in Bristol, England. The band formed from the remnants of several bands that were playing the American Military bases circuit in Europe in the 1970s. The Band were based in Mannheim, Germany and the lineup consisted of vocalist Swig , guitarist Dave...
  
  , a British band

See also

• Agency (disambiguation)
• Agent, a title
  Title
  A title is a prefix or suffix added to someone's name to signify either veneration, an official position or a professional or academic qualification. In some languages, titles may even be inserted between a first and last name...
  
   or honorific, such as "Agent Smith"
• Bot (disambiguation)
• Operative (disambiguation)
• Personoid
• Robot
  Robot
  A robot is a mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control. In practice a robot is usually an electro-mechanical machine that is guided by computer and electronic programming. Robots can be autonomous, semi-autonomous or...
  
  
• Agent P, A secret agent name for Perry the Platypus from Disney's Phineas & Ferb