Villains/Monsters (HarmonyHeart Kids)

The following is a list of all the villains/antagonists that appeared throughout the HarmonyHeart Kids series.

Introduced in Season 1

 * Prince Wyvern
 * Gene
 * Glasgow Gus
 * Nebula
 * The Jellyfish Brothers
 * The Viruses
 * The Bullies - Darla, Lucy, Sally, Molly, and Anita
 * Toxins

Introduced in Season 2
TBA

Monsters
This is a list of monsters that appear throughout the series. They're usually summoned by Gene, but they do come from another source. These monsters are sent by Prince Wyvern to destroy the HarmonyHeart Kids, but they end up defeating them. They (usually) come back episodes later after they were destroyed; when they do, they might play an antagonistic role.

Chompasaurus
This monster takes on the appearance of a large, round, black spherical creature with red eyes and sharp teeth. He looks menacing, but looks harmless, as it really wasn't trying to hurt the Kids, it was just hungry.

Episode Appearances

 * S1xE1 = The HarmonyHeart Kids (debut)

Octogiant
Octogiant starts out as a small, harmless pet by Prince Wyvern. Later, he grew to enormous size and kidnaps Mayor Clydesdale. The HarmonyHeart Kids defeated him simply by countering his fire attacks.

Episode Appearances

 * S1xE1 = The HarmonyHeart Kids (debut)

Clubstor
Clubstor is summoned by Gene to defeat the Kids. Like what they did with Octogiant, they defeated him simply by countering his attack. He is a giant, green rabbit with yellow eyes, usually carries a club and sword with him.

Episode Appearances

 * S1xE1 = The HarmonyHeart Kids (debut)

Nova
Nova is a giant, golden, robotic cat with pink eyes who is seen in a flashback in his debut. According to Moonlight Man, Nova's ultimate goal is to take over the universe; to do this, he sends a meteor toward Earth, but didn't know that the meteor's explosion caused more than just destruction. Any monster summoned from Gene came from Nova.

Episode Appearances

 * S1xE2 = A Dark And Story Night (debut)

Thunder King
The Thunder King is a monster summoned by Gene. He started out as an unseen enemy inside a giant, gray cloud. The HarmonyHeart Kids try using physical force, but ultimately defeated him by throwing him into a giant jar of water. The Thunder King resembles a large cloud creature with black limbs, orange eyes, blue shoes, and a golden crowd on his head. His weapon of choice is a cloud-shaped staff.

Episode Appearances

 * S1xE2 = A Dark And Story Night (debut)

Toxins
Toxins are a species of evil creatures capable of possession. Once they possess their victims, it causes them to become aggressive. It is not known what else they're capable of, but the things they do are horrifying. The Toxins are large, pink, balloon-like creatures wearing white gloves and large white eyes with slit black pupils. Their tails are jagged at the end.

Known victims

 * The Bullies - Gus-dora's Box

Episode Appearances

 * S1E7b = Gus-dora's Box (debut)