The Operators are designed to handle various tasks within the government agency Public Security Section 9, such as operating computers, carrying equipment within the agency's building, and even crewing aircraft.

Physically they are gynoids, seen wearing office lady-style suits. In one episode, additional Operators are seen coming out of the walls to replace disabled units during a particularly strenuous task, suggesting that Section 9 has many in backup and that the units are switched regularly. Their physical appearance is of a female wearing an office lady's suit. They have brown hair tied in a pony tail with brown eyes. It should be noted that they happen to be some of the most advanced Operators in the series besides Proto who is a prototype bioroid.

In the not so distant future, mankind has advanced to a state where complete body transplants from flesh to machine is possible. This allows for great increases in both physical and cybernetic prowess and blurring the lines between the two worlds. However, criminals can also make full use of such technology, leading to new and sometimes, very dangerous crimes. In response to such innovative new methods, the Japanese Government has established Section 9, an independently operating police unit which deals with such highly sensitive crimes. 
Led by Daisuke Aramaki and Motoko Kusanagi, Section 9 deals with such crimes over the entire social spectrum, usually with success. However, when faced with a new A level hacker nicknamed “The Laughing Man”, the team is thrown into a dangerous cat and mouse game, following the hacker’s trail as it leaves its mark on Japan. 
(Source: MyAnimeList)

__Agency:__ Liberta

Eri Oono is a Japanese Voice Actress.

Deep into the twenty-first century, the line between man and machine has been inexorably blurred as humans rely on the enhancement of mechanical implants and robots are upgraded with human tissue. In this rapidly converging landscape, cyborg superagent Major Motoko Kusanagi is charged to track down the craftiest and most dangerous terrorists and cybercriminals, including "ghost hackers" who are capable of exploiting the human/machine interface and reprogramming humans to become puppets to carry out the hackers' criminal ends. When Major Kusanagi tracks the cybertrail of one such master hacker, the Puppeteer, her quest leads her into a world beyond information and technology where the very nature of consciousness and the human soul are turned upside down.
 
(Source: Kodansha USA)

A.D. 2034. It has been two years since Motoko Kusanagi left Section 9. Togusa is now the new leader of the team, that has considerably increased its appointed personnel. The expanded new Section 9 confronts a rash of complicated incidents, and investigations reveal that an ultra-wizard hacker named the Puppeteer is behind the entire series of events. 
In the midst of all, Batou, who was stalking the case on a separate track, encounters Motoko. She goes away after saying, "Stay away from the Solid State Society." Batou is left with a doubt in his mind. Could Motoko be the the Puppeteer? 
The series of intriguing incidents that Section 9 faces gradually link together almost artistically. Who is the Puppeteer? What will happen to Batou's relationship with Motoko? What is the full truth behind this carefully planned perfect crime? And what will the outcome be? Mysteries surround the Solid State Society... 
(Source: Production I.G.)