Duke Skyheed

Duke Skyheed was the monarch of Aeropa and the main antagonist of Jak and Daxter: The Lost Frontier.

The Lost Frontier
After Jak, Daxter, and Keira protect his Airship, the Behemoth, from Eco Pirates, he introduces himself to them and explains that he is looking for the Eco Core. He then invites them to the grand city of Aeropa. When they reach Aeropa, he shows them the Eco Seeker. Keira asks if she can study it to become a sage. He agrees but only if Jak can complete the training course to prove to him he can protect it.

Later, it turns out he had made Phoenix and Tym perform Dark Eco experiments on Aeropan citizens in order to develop dark warriors to fight during a terrible war (even using a chair that looked exactly like the one Jak was in for Baron Praxis' experiments), but Phoenix refused to cooperate, and since nobody would hear him out, he kidnapped Tym and accidentally erased his memories of the project to ensure it would be stopped. Skyheed had eventually spread the Dark Eco across the citizens of Aeropa, and Phoenix swore to destroy those infected with it, including Jak.

He then bribes Klout to betray Phoenix and give up the location of the Eco Source. He then uses the vast amounts of Dark Eco to transform himself into a massive Dark Eco creature that Jak and Daxter had a hard time fighting against since Jak's ability to transform was unstable and ineffective at the time. In this form, he literally destroys the city of Aeropa, turning his dark warriors against citizens and the like. When his right-hand man, Chancellor Ruskin, reveals that he had been helping Jak and his friends, Skyheed throws him down from the tower, almost certainly killing him.

In this dark form he is seemingly acknowledged by Precursor technology since some defense systems that targeted Jak's ship left Skyheed alone. After the final battle left Phoenix sacrificing himself and the Behemoth destroyed with Skyheed inside, it was assumed that he was killed.

Personality
At first, he is well mannered and hospitable towards Jak and Keira. In reality he has grown mad with power and willingly trades sanity for more power and Dark Eco. He is treacherous and, like all villains, cannot stand to lose.

Appearance
Duke Skyheed appears to be tall and fashionably dressed - almost like royalty. He has very pale skin and longish hair.

Abilities
When in his Dark Eco form, he has the ability to pick up objects as heavy as planes and use them as weapons, scatter dark eco mines across the field and has super speed. He is also very impervious to weaponry.

Equipment
The Aeropans are big fans of machinery, and Duke Skyheed is no exception. He owns a special ship which he uses when escaping from Jak during their penultimate battle. When in this ship, his armor is almost impenetrable, and can resist hits his armor is reduced to a certain level. It also make use of warp technology, disappearing and reappearing at will. Because of this, Skyheed can also pass through solid walls.

Role in the series
Because he is presumed dead, Skyheed is not likely to appear in the series. Though since it's presumed he was dead and that he proved to be impervious to pain in his Dark Eco form, it might be possible he survived the battle, and could be planning an act of revenge.