7. Hades - "Hercules" images1.wikia.nocookie.net More "sassy gay friend" than evil villain, Disney scrubbed most of the scary right of the god of the underworld. 6. The Red Guy - "Cow and Chicken" wordpress.com A scam-artist shapeshifter who walks on his butt? Disturbing, but not because he's scary. 5. Aku - "Samurai Jack" 0.tqn.com An immortal dark god with superhuman strength, the power of interstellar travel, laser-beam eyes, and control of the elements who dabbles in necromancy? That is how you do scary shapeshifting. 4. Katz - "Courage The Cowardly Dog" whatimsupersaiyan.tumblr.com There's just something about his calm cruelty that lingers with you well after the show is over. 3. Him - "Powerpuff Girls" For a falsetto cross-dresser with fabulous taste in boots, HIM radiates a malevolence that unsettles even grown adults. 2. Hunson Abadeer - "Adventure Time" adventuretime.wikia.com It take true evil to trap your daughter in your all-powerful demon suit so you can drink beer and watch football on Sundays. 1. Chernabog - "Fantasia" whysoblu.com Disney continues to traumatize generations of children by sneaking in a Satanic ritual into the end of a movie about dancing mushrooms and frolicking centaurs. Honorable Mention: Robot Devil - "Futurama" View this video on YouTube youtube.com Not for kids, but a delightful singing voice. Honorable Mention: Satan - "South Park" 0.tqn.com Definitely not for kids! But only Matt Stone and Trey Parker could make the Lord of Evil into a sympathetic character in a bad relationship.