The anime series Witch Hunter Robin featured an extensive cast of fictional characters designed by Kumiko Takahashi. The series takes place on a fictional modern-day Earth where the Solomon organization fights the harmful use of witchcraft using a database of witches, those who have obtained the power of witchcraft through genetics, and those who carry the gene called "seeds" in order to arrest them or to employ Hunters, people who hunt witches, should their powers "awaken".
The series' titular character is Robin Sena, a soft-spoken 15-year-old Hunter and witch with pyrokinetic abilities. She is sent to Solomon's Japanese branch, the STN-J. There she meets five other Hunters: Amon, Haruto Sakaki, Michael Lee, Miho Karasuma and Yurika Dōjima. The antagonists include Takuma Zaizen, administrator of the STN-J. As the series progresses, Robin's witch power strengthens and she is hunted by the Solomon organization.
Main characters
Robin Sena
is a soft-spoken 15-year-old Hunter and craft-user with pyrokinetic abilities. She was raised in a convent in Italy-(where she was taught how to use and control her craft in hunting down Witches) before she was sent to the STN-J to gather information for the Solomon administration; even though she was born in Japan, she had moved to Tuscany when she was still very young. Her witch powers allow her to channel her energy into shields capable of blocking solid matter and crafts, magical powers. However, any use of her power temporarily weakens her eyesight, greatly reducing her accuracy and effectiveness. This problem is solved when she begins to wear glasses. Although she is good-natured, Robin employs her gift with lethal force when necessary to save a life or for the good of others. As the series progresses, her powers increase rapidly until she is labeled dangerous by Solomon and is ordered to be hunted as a witch. It is discovered that Robin is a "Designer Witch" and was created through "Project Robin", a genetic engineering project. Her mother, Maria, had agreed to genetic manipulation and called the unborn Robin "Hope." Robin was designed to give birth to witch kind, what was once called "divinities" in ancient history. Robin was given thousands of years witch kind's memories, the origin of "craft". This enables her to understand the sadness arising from the conflict between humans and witches, in turn allowing her to find a way for humans and witches to peacefully coexist. Amon volunteers to be a watchman who will terminate her if she becomes destructive. She accepts this. After the collapse of the Factory, her fate is unknown. The reactions of the other characters show that she is believed to be alive, but is said to be dead for her own safety. However, after the ending credits it shows that a new hunter arrived at the STN-J, which is actually not a new hunter but Robin herself.
Amon
is a cold and serious 25-year-old S-class Hunter. He is asked by Zaizen to watch over Robin and he reluctantly does so. After seeing her worth in dealing with highly prominent witches, he accepts her. After an attack on the STN-J headquarters, he is no longer seen working under Zaizen and instead works for the Solomon headquarters. When he is ordered to kill Robin, Amon finds he cannot. Amon's father was a seed and his mother was a witch, indicating he carries the dormant witch trait. He fears the awakening of the gene. His fear and hatred of witches stems from the awakening of his mother as a witch, who no longer recognized him afterward. When Robin accepts her role as the one who will find a way for humans and witches to peacefully coexist, Amon volunteers to be a watchman who will terminate her if she becomes destructive. After the collapse of the Factory, his ultimate fate is unknown. However, the reactions of the other characters show that he is believed to be alive, but is said to be dead for his own safety; it's been strongly implied that Amon harbors romantic feelings for Robin.
Haruto Sakaki
is an 18-year-old Hunter. Haruto is supportive, but brash, slightly hot-tempered, and ambitious, often rushing into danger during hunts, producing regrettable results. He is the STN-J's newest member, after Robin, and is initially afraid of being replaced when she arrives. Despite this, he welcomes her. Although his exact condition is unknown, it is suggested he is an unawakened seed when he is hunted by Zaizen. At the series' conclusion, Sakaki is confirmed to be alive and still hunting witches.