Remove hidden WordPress Administrators

If you notice more administrators at the top of the admin panel than are listed here /wp-admin/users.php?role=administrator

In DB, identify by ID number the real admins.

wp_users will list the real ones, any hidden extras will show in wp_usermeta.

select * from wp_usermeta where meta_value LIKE '%administrator%';

remove the hidden admins from results (red X)