キュロス, Thunder Soldier of Rage,The Angry Lightning Soldier,The Invincible Gladiator

Age: 34

(biologically), 44 (chronologically)

Birthday: September 22nd
Occupations: Gladiator (former), Riku Royal Army Commander (former)
Affiliations: Corrida Colosseum (former), Riku Royal Army

Kyros is a legendary gladiator, who fought at the Corrida Colosseum until 20 years ago. A great bronze statue of him is held at the Corrida Colosseum.

When he was turned into a toy, everyone forgot his existence. After his transformation, he became a One-Legged Soldier, known as "Thunder Soldier of Rage". He is the former commander of the Riku Royal Army. He is also the father of Rebecca, husband of Scarlett and the son-in-law of Riku Dold III.

He spent ten years as a toy before being freed by the success of his own Operation SOP. After helping bring down the Donquixote Pirates, Kyros currently lives with Rebecca.