The Skull Knight is one of the most mysterious and prolific characters introduced in Berserk, a towering warrior dressed in full armor whose ornaments, especially his helmet, are shaped as parts of a human skeleton, hence his moniker, who rides a massive, ghostly black horse. Though ominous and macabre, he is an enemy of the Godhand and its acolytes, hunting down Apostles and devouring their Behelits; especially bitter is his rivalry with Zodd the Immortal, whom he was often showed to overwhelm with ease. He wields a powerful sword that, when stuck down his throat, becomes a terrible, Behelit-coated blade capable of slashing rifts through reality itself, thus allowing the Skull Knight to move freely around the world or even between different dimensions. This enigmatic knight saved Guts in more than one occasion, notably during the infamous Eclipse which saw Griffith become a member of the Hand of God or when Slan almost slaughtered him, though he never explained why, simply declaring that the Struggler (the way he calls Guts) has to keep following his fate. It is heavily speculated that, during his life as a mortal, the Skull Knight was in fact Gaiseric, the warlord that unified the Midland and became its first Emperor, notorious for his helmet whose shape was that of a human skull and whose ambitions 'prompted God to send four Angels' (most likely the four members of the Hand of God) to punish him. He was the wearer of the Berserker's Armor, and knew the witch Flora. During the duel between Griffith and Ganishka he suddenly appeared out of thin air through a dimensional rift, trying to land a fatal blow on the Hawk, only to see it diverted on the writhing body of the Kushan Emperor.
Woody is a Sylph. His job is to deliver packages and other goods to people in Neo-Venezia, or delivering people's treasured feelings as he called it. He loves 'swimming' through the sky, and prefers his nickname because it's less formal than his actual name. In the manga, Woody has a somewhat poor sense of direction, and is mostly unable to work without using a map. He's a childhood friend of Akatsuki, the two often spending time playing outside, occasionally being looked after by Al.
A high school orphan who has moved into his deceased parent house by himself, but not for long as each of his teachers recognises his slipping grades and decide to secretly move in with him, becoming his "Mothers". In the beginning of the series, it is shown that Hitotose is very good at fighting, as seen when he beats up two guys who were making fun of him because he has no parents; later on, in Happy Lesson Advance, we see his ability to fight numerous times during his conflicts with Nagatsuki Kuron. Hitotose's true feelings are also revealed in Happy Lesson Advance. He actually replaces Susumu Arisaka from the manga version. (Source: Wikipedia)
Chitose's adopted younger sister. Mina currently attends the middle school section of the same campus as Chitose. She lives with her sister Hazuki (whenever she is not touring) in an apartment building not far from Chitose's house. Mina loves Chitose like a real brother and helps Chitose whenever she can. She plans to marry Chitose when she is old enough.
Chitose's adopted elder sister. Hazuki is a pop idol in Japan; because of this, she is usually touring different cities across Japan. Her singing is very popular and has won the hearts of people across the country. A major characteristic is her ability to eat, being able to eat extremely large amounts of food in very little time.