Professor

Professor (博士) (real name unknown) is a minor antagonist in the Toaru Majutsu no Index series. An elderly man, he is the leader of MEMBER.

Daihasei Festival Arc (Railgun)
In the first day of Daihaseisai, he contacts a disguised Xochitl to carry out her first mission as part of MEMBER.

Battle Royale Arc
He and his team have been described as Aleister's loyal dogs. He openly trusts the technology provided by the higher-ups and their power to rule the city. He confided that art brought him despair when he was 12, since architecture was extremely beautiful yet hard to understand; he instead chose to love formulas, which he sees as precise, objective pieces of work with no waste at all. He also seems to be easily fascinated by ideas that he himself hasn't thought up, such as when he was amazed by the sight of Tsuchimikado Maika "driving" a cleaning robot.

He usually keeps Baba Yoshio's remote-controlled machines close to him and is interested in AIM fields, He controls the microscopic machines made of electric alloy called "Mimosa" using various frequencies. The only use for the machines shown in the novels is their ability to strip down the human body. , and seems to have a good level of knowledge about what's going on within Academy City, for example he knew that one of the members from his team was an infiltrated Magician from the outside. .

He meets his end when he tries to use the Mimosa to try to kill the #2 Level 5 esper Kakine Teitoku. Unfortunately for him Kakine was in possession of the Pincet Glove at the time, which allowed him to be aware of the microscopic machines, and was able to defend against the attack using his ability, after which he kills the Professor saying "It is time you had another taste of despair".

Design evolution
Appearing only in a single volume, Professor's design remains static throughout the series. His preliminary design bares little change from his finished design. According to Haimura, Professor looks like Desty Nova from Battle Angel Alita.