Clark (クラーク) is a navigation Wizard that welcome people in the Satellite Server from MegaMan Star Force 3's official webpage. In the Japanese site he also give news like when new sections are added and notices from the Wave Masters events, along with a Hertz and a Wizard called Garoner. Although he is related to the MegaMan Star Force series, he didn't appear in any game.
When Clark was damaged for the second time in November 5, 2008, he had a more serious expression and the Satella Police emblem was added to his chest after the repair. When he was damaged again in March 13, 2009, he returned to his original appearance.
In August 2009, he announced that the official site of Rockman.EXE Operate Shooting Star opened, and later says that A.C. Eos trust him a prototype time-travelling program called "Clock PGM" for him to test, which opened a warp hole that made him disappear. After this, the Rockman EXE Operate Shooting Star site was updated and he appeared there. The last update was in August 21, 2009, where the Hertz says he's worried with Clark.
In the Rockman.EXE Operate Shooting Star website, Clark introduces the MegaMan Star Force series to newcomers.