Paranoia Agent (Cartoon Network)

Each episode of PARANOIA AGENT features colorful characters who are facing both internal and external challenges. A common thread throughout the many tales is a serial killer named Lil' Slugger (known as "Shonen Bat" in Japanese and voiced by Jamie Gallardo in the English dub); episodes frequently end with the murder of the main character featured in that particular story. Overall, the series is a very dark look at how humans suffer physically, emotionally, and psychologically from the reactions of others, as well as from their own thoughts.

Series creator Satoshi Kon has a huge following among adult anime fans, many of whom put Paranoia Agent high on their list of favorites. His adept use of visuals, dialogue, and plot to convey social commentary about people's everyday reactions to things like jobs, relationships, and internal battles often hits a nerve with grown-up viewers. But if your kid, tween, or young teen is an anime fan, this violent psychological drama isn't for them (it runs as part of Cartoon Network's late-night Adult Swim lineup for a reason). And since the storylines frequently move in and out of reality, even adult viewers may have a hard time distinguishing what's real and what's a dream, leaving the uninitiated with lots of unanswered questions.