Kolivan

Kolivan is the leader of the Blade of Marmora and one ally of Team Voltron in season two of Voltron: Legendary Defender.

History
Kolivan and the Blade of Marmora endanger the lives, such as Team Voltron fight against the Zarkon. When Shiro and Keith returned to the Castle of Lions they brought Kolivan to meet Allura, and then Kolivan and the Blade of Marmora began to act the allies of Team Voltron. And then the Blade of Marmora helped Team Voltron to defeat Zarkon.