Caster (Fate/Prototype: Fragments)

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Nasuverse character





Japanese name: キャスター
Franchise: Fate
Appears in: Fate/Grand Order
Fate/Prototype: Fragments of Blue and Silver
Japanese VA: Shinichiro Miki
Character type: Servant (Master: Manaka Sajyou)

Servant (Master: Protagonist)

Servant classes: FGO Caster
Gender: Male[1]
Height: 183cm[1]
Weight: 65kg[1]
Place of Origin: Europe[1]

Caster (キャスター, Kyasutā?) is the Caster-class Servant of Misaya Reiroukan's father in the First Holy Grail War of Fate/Prototype: Fragments of Blue and Silver. He later forms a new contract with Manaka Sajyou. He is able to be summoned by the Protagonist in the Grand Orders of Fate/Grand Order.



Caster's True Name is Paracelsus von Hohenheim (ヴァン・ホーエンハイム・パラケルスス, Van Hōenhaimu Parakerususu?), a legendary physician turned alchemist. At the 16th Century, he is known as a historic figure from the Renaissance Period.[1]

He left behind many achievements and books such as the "rediscovery of the four (five) elements" and the "rediscovery of the three humors", which helped advancement of Magecraft. A rare individual who went down in both human and magic history.[1] He is known for creating the original Azoth Sword.

In life, Paracelsus held a remarkably radical view of the world that was in stark contrast to almost all other mages, he believed that magic was something the public should've been made aware of. He had believed in the good magic could bring to the world if only everyone was made aware of it. He also used his knowledge in alchemy to help common folk with no connection to magic.

Unfortunately, this ultimately caused him to get killed as his belief was what spelled the end for him when the Mage's Association sent their assassins to his doors, in order to preserve the mysteries of magic.

Of course, they never meant to eliminate him immediately, as to them he was still a rare and talented individual. He was by no means a heretic, even in the Clock Tower's views. In his attempts to disclose the mysteries of magic, he was warned more than thrice by the Clock Tower. In his last moments of life, he greeted his assailants with complete composure and pacifism.

After he was slain, his killers salvaged all that they could from his workshop from the tome that he had wished to publish in order to reveal the existence of magic to the world, to mountains of catalysts and experimental notes. Their only conclusion was that he was a strange man wishing to help others. They would later attempt to interrogate his ghost through a seance, but even then he remained silent. During the seance they had attempted to come to a mutual understanding, but after 5 mins and 20 seconds it came to naught and they finally banished his spirit.

His last words to them before being dispelled was:

“When all of you, return to each of your homes, please be affectionate to your children. Even showing it to your neighbours’ kids is fine. As the light that I sought, is in them.”
—Paracelsus last words to his killers


Caster's outfit resembles that of a traditional white tailed lab coat with unique modifications. The coat possess a raised collar that descends down the coat as large v-cut and black epaulets on its shoulders which can change to include yellow marks as Caster ascends, a trait shared by the sleeves of the coat.

Under the coat, Caster wears what appears to be a dark blue turtle neck sweater with a burgundy choker and harness. For shoes, Caster wears knee high metal boots reminiscent of those found on the armors of knights.

Caster possess long grayish blue hair that he lets fall loosely over his right shoulder. This changes to a braid when he ascends.

Caster has been noted to be incredibly beautiful, his slender figure combined with his long, dark hair could easily mistake him for a woman.


He is intellectual and calm. His disposition is mild and does not enjoy combat. Advocates that human affection is more precious than anything. He regards the modern magi far and wide as the descendants of the pupils that inherited his teachings, loving them equally as far as the world permits that love.[1]

The wish he once had for the Holy Grail was "to reach the Root". Furthermore, he also wanted to ascertain the authenticity of his personal opinion regarding how the light of the star (like that of a holy sword) is indeed a light shining from the Root or so it was. But it may be that he is currently seeking for atonement instead.[1]

During the events of the Prototype Grail War, Caster displayed a surprisingly cruel and remorseless side to his personality when he accepted Manaka's offer to switch sides by slaying his previous master and spiting Assassin by taunting her about her inability to obtain physical comfort without killing the one who hold her, while simultaneously offering her the corpse of Tatsumi as the only thing she could ever hold. This change of heart was later revealed to been largely in part due to Manaka's soul-crushing manipulation and intensity. For the rest of the war, Caster would continue to lament on his mistakes in betraying the Reiroukan family, particularly Misaya.

Caster's wish was to be remembered as a great figure in the advancement of human prosperity and be beloved by the "children of the future."

Paracelsus knew Da Vinci in life, but couldn't remember if he was female when they first met. He deeply respects Da Vinci, so much so that he wouldn't dare trying to befriend her.

Paracelsus also knew Zouken in life and wanted to be friends with him, and saw him as a noble idealist. If he ever met the 21st century Zouken he would absolutely not recognize or acknowledge him as the same person.


Fate/Prototype: Fragments of Blue and SilverEdit

He was originally the Servant of Lord Reiroukan during the first half of the Holy Grail War. He forms a strong bond with Misaya (his Master's daughter) to the point that he even calls himself "her friend."

After Berserker is defeated, he encounters and battles with Manaka, only to be charmed into joining her.

During the battle with Rider on top of Tokyo Bay, Paracelsus betrays his Master by cursing him to death. Furthermore, right before he departs for his new Master, the morning after he kills him, he confesses to Misaya about his betrayal and how he has left a curse on her. He then coldly tells her that “Magi, do not have friends in the truest sense of the word.”

At some point later on, he turns Tatsumi Kitano into a Living Dead, and gives him to Assassin as a present. He also shows some hesitation over his loyalty to Manaka, by trying to protect Assassin.

Prior to confronting Saber during the final stages of the Holy Grail War, he reminisces and shows regret over his betrayal of the Reiroukan family. During the battle, he tries to activate the true ability of his Noble Phantasm, however due to being unable to contain all of Excalibur's Prana, he is ultimately blasted by Excalibur and is defeated. His final words were “Misaya, this is, the star’s…….”

Fate/Grand OrderEdit

London: Death World in the City of Demonic FogEdit

He is an antagonist in London 1888. He refers himself as "P".

SABER WARS – Lily’s Cosmic Training – The Caliburn AwakensEdit

Chocolate Ladies Fussing Over Trifles ~Valentine 2016~Edit

Da Vinci and the Seven Counterfeit Heroic SpiritsEdit


Caster is an alchemist from the Renaissance period and the one responsible both for creating the Alchemic system that is used by most alchemists of the modern era as well as creating the Azoth Sword, which has become a symbol of a rite of passage for Mages, with copies of the original being given by Mages to their students as a simple, yet very effective Mystic Code. His noble phantasm is Sword of Paracelsus.

Due to his Item Construction, he can produce a variety of tools. He can create a powerful prana cumulative crystal such as the "Philosopher's stone", artificial spirits that correspond to the five elements called Elementals, robots endowed with multiple-body-synchronous-thinking ability, among other things.[1]

Given his nature as an alchemist, he is able to create a large number of homunculi to do his bidding in a short time span. He was able to coin at least one in the time frame of one day after his summoning via a process that involves distribution of his flesh. As with all homuculi, he notes that they only superficially resembles humans and are not as physically equipped biologically as a normal human. Still each of them are connected to each other as a hive mind and he can program them with instructions for complex tasks such as brewing and serving tea.

With the Philosopher's Stone, Caster is even able to temporarily revive Tatsumi's corpse as a sort of ghoul like familiar to mockingly taunt Assassin.

Being a member of the Caster class, he is able to set up several types of Bounded Fields and magical traps, effectively turning his stronghold into a fortress of death.

Contrary to his quest of progressing life and helping others, he is also remarkably skilled in curses, being able to stealthily inscribe a lethal curse upon a magus without them noticing.

Paracelsus is also an Average One, meaning he can manipulate all of the five Elements.[1] He typically casts his spells with the command, "O' [element]". Through the command, "O' Wind" Caster is able to carefully levitate a dusty cloth and have it automatically fold itself without scattering any of the dust on it. He notes that this was a simple single-action spell that combines psychokinesis and air manipulation.

He is also very adept at jewel magecraft, effectively having stones packed with magical energy floating around him in combat and throwing them against targets in a way similar to telekinesis. They are powerful enough to blow away the "shadows" thrown at him by Manaka, a human who is directly connected to the Root.

One other field in which he seems to have a good deal of experience in is Healing Magecraft, as he offered his services to Saber, but there was no need as Manaka had already seen to his recuperation.


Nakahara is the character designer for Paracelsus.


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23

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