Stephen was a police detective and son of the police chief of Great City. He donned a globular helmet made of one way Argus glass to fight crime at night and steal the ill gotten gains of the corrupt. As the moon man, he also wore a black cloak and gloves. He stole money from criminals and distributed it to the needy. He also carried an automatic and was willing to kill criminals. He battled the Red Six, and picked them off one by one.