King Xarion

King Xarion, also known as King Viktor, was the monarch of Zarkovia who appeared in Viktor: The Spoils.

Apearance
King Xarion had the appearance of an old man. He had white hair and was partly bald. He wore a red coat with fur and 3 golden crosses on each side. He also wore a green shirt and black pants.

In his King Viktor form, he has robotic parts that are silver on his chest. His scars are shades of purple. His eyes are now red too. He still wears black pants along with a silver belt, small helmet, completely bald head, and silver shoes.

His human form in Omniverse was shown to be the same except his hair is longer and he has a crocked noise.

Personality
At first glance King Xarion seems like a kind and gentle king who cares about his kingdom and seeks peaceful methods. However, his true personality has been shown to be cruel and heartless tyrant who would crush anyone who stands in his way. He also has no love for his son, Prince Gyula, and he tried to murder him upon being reborn as King Viktor.

Ben 10: Ultimate Alien
In Viktor: The Spoils, King Xarion contacted Ben Tennyson to help him to stop his son Prince Gyula from using the brain-dead body of Dr. Viktor. After Ben and his team were defeated, he was overthrown by his son and thrown into the dungeon. Gwen then let him go, but he betrayed her and kidnapped Ben for experimentation. He did when his son shut off his machine's power as he was hooked up to a mind-transfer device, albeit simply transferring his mind to Dr. Viktor's body, making him King Viktor.

King Xarion was later beaten by Ben, Gwen, and Kevin but could not be arrested seeing as actions within that country undertaken by humans are regarded as out of Plumber jurisdiction (regardless of the fact that Xarion had been inhabiting an alien criminal's body).

Ben 10: Omniverse
It was revealed in Rad Monster Party that Zs'Skayr eventually entered Dr. Viktor's molten-hardened body and devoured King Xarion's soul, thus reviving the original Dr. Viktor.

Ben 10: Ultimate Alien

 * Viktor: The Spoils (first appearance)

Ben 10: Omniverse

 * Rad Monster Party (first re-appearance; flashback; death)