One of the four 'Coffin Knights' The four knights released from the coffins that Pazuzu attempted to keep hidden throughout Aegis of Uruk. Without Pazuzu, they have awakened and now roam the Tower without a master, attacking various climbers as they see fit. Gremica reveals that they are magical machines, created from the Dark Armour formerly used by the Sumar Empire (Red Knight, Blue Knight, Mirror Knight, and Hyper Knight) and their individual characteristics likely carried over. Henaro's motivation for climbing the tower is to recover the four knights by the orders of Amina and protect the king's shadow. (Source: Wikipedia)
The Catholic parish priest of Sonogno Village is a close friend of Romeo's family. He supported the family when Roberto had a serious illness.
Archer of Red is the Archer-class Servant of Shirou Kotomine of the Red Faction in the Great Holy Grail War of Fate/Apocrypha. Archer's identity is Atalanta, the Chaste Huntress in Greek mythology. Though she was born as the princess of Arcadia, Atalanta was abandoned in the mountain immediately after birth, but she survived thanks to divine protection from Artemis. She grows into an excellent huntress, and accompanies the Argonauts. As one of the world's most famous archers, she wields Tauropolos: Bow of Heaven, the boar-killer, a celestial bow. (Source: Type-Moon Wiki)
He was the daimyo of the Land of This. The daimyo was an eating contest's viewer alongside his daughter and Shuu. He was in charge to give the prizes to the winners of the contest. During Akatsuki's invasion of his country, he was killed during Sasori's puppet assault. Anime Debut: Naruto Shippuuden Episode #309 (Source: Narutopedia)
He is the King of Kou and has a son whom he wishes Aki to marry.
A mischievous fairy who played scared people at Ayano's school, causing everyone at the school to think that a ghost was haunting the place. Tiana later approaches Kazuma about a treasure that was stolen from the king of the fairies, and hires him to retrieve it. Though she is able to prank Ayano and her friends quite successfully, Kazuma is able to handle her without a problem from the first time they met. She serves mainly as comic-relief.
Rai is a very elegant and mysterious Noble. He has no knowledge whatsoever of the 21st century, and will often become lost and confused especially with regards to modern day technology (such as using a cell phone). He is often used as the manhwa's comic relief with his love of ramen and the errors he makes with technology. He has fallen into a deep slumber for 820 years, and had woken up in an abandoned building in South Korea. After seeing what most of the humans on the streets were wearing, Rai took on the uniform of a student from Ye Ran High School, which is under the administration of Frankenstein, and inadvertently followed the students there. Rai is infact the "Noblesse", where the name comes from. The "Noblesse" is a name given to the person who watches over the nobles. The "Noblesse" also symbolizes power, different from the lord, who symbolizes authority.