While "Watchmen" has an ensemble cast, many consider Rorschach to be the protagonist as he drives most of the plot forward and serves as the series' narrator. In the beginning of the story, he is introduced as the only masked vigilante to remain active on his own terms and initiative, a criminal outlaw as opposed to other former "superheroes" now covertly employed by the U.S. government. A ruthless crime-fighter, Rorschach believes in moral absolutism—good and evil as pure ends, with no shades of gray—which compels him to seek to punish any evidence of evil at all costs. His mask displays a constantly morphing inkblot based on the ambiguous designs used in Rorschach inkblot tests, with the mask's black and white coloring consistent with his sense and view of morality. This is also how he received his name.