Moon Knight

Moon Knight (Real name Marc Spector) is a fictional character created by Marvel Comics. He is a superhero who draws his powers from the moon and battles crime as a street-level hero akin to Batman, but also being possessed of an even more pronounced lack of mental stability. Throughout the character's existence Moon Knight has been depicted as everything from a victim of Multiple-Personality Disorder to delusions and hallucinations.

These various and often crippling mental disabilities sometimes impair Moon Knight's judgment and in turn cause him to frequently behave in a decidedly ruthless manner that puts him at odds with most other superheroes, many of whom view him as dangerous and unstable. Nevertheless, Moon Knight has still sometimes worked with other heroes, primarily Spider-Man (who is one of the only superheroes who is able to see the good in Moon Knight) and the Punisher (whose brutality exceeds even Moon Knight's own). In a sense Moon Knight stands as a gray middle ground between the extremes of his two chief superpowered allies.

Moon Knight first acquired his powers after a near-death experience during his time as a soldier of fortune. Taking to the temple of the Egyptian Moon God Khonshu, Marc Spector was miraculously restored and from there refashioned himself into the costumed crusader he is today, battling evil of all shapes and sizes in Khonshu's name and abandoning his previous identity as a selfish mercenary.

This doesn't mean that Moon Knight is now a nice guy. As said above he frequently indulges in acts of brutality that most superheroes frown upon, and his clear mental instability only serves to further isolate him from his costumed peers. As such when Moon Knight fights evil, he often does so alone.