Sleepy Ash

Sleepy Ash is the deuteragonist of Servamp. Kuro is the oldest of the seven Servamp siblings and, according to Mikuni, arguably the most powerful of them.

He is voiced by Yūki Kaji in the Japanese Version and Chuck Huber in the English Version.

Personality
He can often be found dozing off, playing video games, or eating junk food in Mahiru's apartment. So far, he is the only Servamp without any Subclass, because he doesn't know whether a person wants to live longer or not and has so decided to have none.

History
He had a falling out with Lawless because he decided to kill the one who made them vampires after receiving the request from C3. The reason for accepting the request is because he thinks that the world doesn't need "monsters" like them anymore. Following the request, Sleepy Ash killed his own creator, but this haunted Kuro who ended up regretting his action. The regret and grief made Kuro decide to not do anything unless someone tells him to, until Mahiru urges him to face his own mistake, which also significantly improves Kuro and Mahiru's friendship.

Trivia

 * His English Voice Actor, Chuck Huber best known voicing as Franken Stein from Soul Eater series, Hiei (Yu Yu Hakusho) from Yu Yu Hakusho, Kururu from Sgt. Frog and Shou Tucker from Fullmetal Alchemist series.
 * Kuro is name given to him by Mahiru as part of their Servamp contract.