Wikipedia:Wikipedians

Wikipedians are volunteers who contribute to Wikipedia by editing its pages, unlike readers who simply read the articles. Anyone—including you—can become a Wikipedian by boldly making changes when they find something that can be added or improved. To learn more about how to do this, you can check out the basic editing tutorial or the more detailed manual.

Wikipedia is in the palm of your hand—all you need to do is edit an article.
Human administration
Wikimedia Board of Trustees
Wikipedians
Wikimedia staff
Stewards
Arbitration Committee
Bureaucrats
Administrators

Wikipedians do a wide variety of tasks, from fixing typos and removing vandalism to resolving disputes and perfecting content, but are united in a desire to make human knowledge available to every person on the planet.