Alternate versions

Saber (セイバー, Seibā?) is a Saber-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order. He appears as a Berserker-class Servant in the Moon Holy Grail War of Fate/EXTRA Last Encore, having been sold by his Master to Shinji Matou and made into a corrupted Berserker.



Saber's True Name is Fergus mac Róich (フェルグス・マック・ロイ, Ferugusu makku Roi?), an Irish hero and a brave warrior of Ulster from the Celtic Mythology's Ulster era (Cycle). He is known as a member of the Knights of the Red Branch, a magic sword-user that is also known as the friend and foster father of the hero Cú Chulainn, and the former King of Ulster.[1][3][4] He took Cú Chulainn from his mother Deichtine to serve as a soldier for Ulster.[5] A great glutton that possessed matchless vigor, great generosity, and one who didn't feel envy nor fear.[1] Even now, the reputation of the hero Fergus as a magnificent brave warrior has been left for posterity.[1][3]


There is a legend that Fergus was the King of Ulster from the previous generation.[3] According to that, it is said that he temporarily handed over the throne to Conchobar under the condition that the beautiful mother of Conchobar is made into his lover, but she left Fergus out of the kingship permanently with her sinister designs, Fergus being tricked out of his kingship as a result.[3][4]

Formerly a man who established a corner of the Knights of the Red Branch, Fergus left the knight order out of rage from the betrayal of Conchobar, now King of Ulster.[1][3] This was because that, after Cú Chulainn returned from the Land of Shadows, Conchobar had Fergus' son killed "out of lust for young women."[5] So he later allied with Connacht, the enemy of Ulster.[4]

At the outbreak of the greatest war in Ulster legends, Fergus stayed beside his lover Medb, Queen of Connacht, and displayed his valor.[1] Spurring on Queen Medb out of hatred for Conchobar, they went to war with Ulster.[5] On the occasion of the Táin Bó Cúailnge, referred to as the greatest war of the Ulster Cycle in Celtic Mythology, many Ulster men stopped in inactivity due to a curse, and Fergus and Cú Chulainn crossed swords in earnest; but given that (in the first place, this war itself happened due to Queen Medb's egoism), at the juncture of the clash with each other, Fergus promised to draw out his hand to a limited degree in that he will not overkill his defenseless former allies, and he continued to practice this with integrity.[3]

During the decisive battle between Connacht and Ulster, Fergus was able to corner the enemy king, Conchobar, who had betrayed him.[4] He was kept from revealing his true prowess due to the fact that Cú Chulainn was in Ulster, but he still reached the point where he was one step away from slaying King Conchobar.[1] However, Fergus was prevented from killing him. It is said that he redirected his rage at this turn of events upon three hills, using Caladbolg to blast their tops cleanly off.[4] Due to the pledge (Geis) exchanged with Cú Chulainn at this occasion, Fergus will achieve victory almost unconditionally in case there is a rematch with him.[1]

At the time of the second invasion of Ulster, Queen Medb - who was scheming her revenge against Cú Chulainn - concluded that "Fergus' existence will become a bother" and did not invite him to the battlefield. Afterwards, Fergus was assassinated by a jealousy-driven King Ailill, Medb's husband.[1]


Fergus goes around barefoot and shirtless but wears pants. He has purple hair and three scars on his chest.


Big-hearted. A man of broad-mindedness that does not care very much about trivial matters. Greatly generous, without jealously, and doesn't know and feel fear. Humane and sincere. Even to an opponent judged to be trustworthy, Fergus has the tolerance to show and share his heaps of generosity in his first meeting with that opponent. However, he never permits betrayal, and he will not forgive one who does it, whether they are a king or not. He always keep the promises he exchanges.[3]

While known as a lover of Medb, Fergus has a legitimate wife.[3] Moreover, she is a goddess of the forest, a Divine Spirit.[1][3] Usually, he wears a composed face, but as a matter of fact, there is a hidden peerlessness behind it. That sexual desire is excessively full of vim and vigor, too much that, that aspect of his needed an average of seven women in one night to be satisfied, or instead, only his wife and Medb can be said to be that "one person that was okay" for his satisfaction.[3] There are not that many humans who can compare to his peerlessness![1]

To the Master, Fergus comes into contact with them as a "comrade in arms". His awareness of the relationship between Master and Servant is very thin. He recognizes them as a commander that he should trust, as well as a comrade in regards to the battle for the hunt of the Holy Grail. If Cú Chulainn is the "big brother that can be relied upon", Fergus has many words and deeds of an "uncle that can be relied upon."[3]

Fergus' wish for the Holy Grail is to "once again 'get along' together with my wife and Medb." Get along. Together. (In other words, he wants a threesome with the two of them.)[1]


Cú Chulainn
His friend and adopted son. When Fergus sees Cú Chulainn, he will slap his shoulder with great joy and laugh heartily.[3]
Lover. Mistress. A reunion would be a delight, the past is something to yearn for. And then, Fergus talks like a filthy old man. Though Medb will strike back with ease...[3]
A peerless beauty. Teacher. The thought of asking her for one night is there, but Fergus understands that it is impossible.[3]
Beautiful Servants
Basically, Fergus isn't doing anything that will disturb his position as a reliable uncle, but towards adult women, the indication of "I want you as my companion for the night" is oozing. Because children are to be protected, he doesn't really have any interest in those who look young.[3]


Fate/Grand OrderEdit

E Pluribus Unum: The Grand Battle of Legends in North AmericaEdit

Fergus is one of the Servants serving under Medb. He arrives in a deserted town to kill Nero, who is residing there, but is confronted by Ritsuka Fujimaru's party. Fergus is defeated by them and reveals that Rama's wife, Sita, of whom they are searching for, is imprisoned in Alcatraz.

Salomon: The Grand Time TempleEdit

Fergus is amongst the "E Pluribus Unum" Singularity Servants to aid Chaldea against the Demon Gods Pillars.[6]

Agartha: The Mystical Subterranean CityEdit

The child form of Fergus, created by modifying his Saint Graph, is brought into the "Agartha" Singularity.


In his interlude, Pretty Illusion, Fergus asks for Ritsuka and Mash's help in deciding what Servants it is okay to flirt with. Romani Archaman tells him he uploaded several Servant profiles into the training simulator for him to pratice on. Entering the simulator, Fergus tries to flirt with Brynhildr, but she attacks him. Afterwards, he tries to flirt with Kiyohime, but she attacks him after recognizing him as a womanizer. Next, he tries to flirt with Florence Nightingale, and she agrees to sleep with him if he defeats her in battle. However, after she is defeated, she decides to sleep with Ritsuka. She explains they are the winner since they're Fergus' Master. Ritsuka rejects the offer, and Nightingale disappears. Mash then tells a dejected Fergus to keep trying and never give up. Fergus tries to flirt her, but she immediately rejects him.

Fate/EXTRA Last EncoreEdit

Shinji's Berserkers

Fergus as a corrupted Berserker

Fergus is one of the three Berserkers under Shinji's control, along with Darius III and Leonidas. They were sent to eliminate Saber, but she tricked them into destroying the firewall that was holding them, allowing her and her Master to escape. Shinji summoned them once again to stop Saber and her Master from using the elevator to go where he was, but they managed to use it while Rin stayed to face the Berserkers. In the end, Rin managed to single-handedly defeat all three of them.

Other appearancesEdit

Fergus is mentioned within Lancer's flashback in Fate/hollow ataraxia.[5]


Fergus was said to be the pride of the Knights of the Red Branch.[5] He wields the demonic sword Caladbolg, said to be Cú Chulainn's natural enemy, as his Noble Phantasm.[4]


Creation and ConceptionEdit

B-suke is the character illustrator for Fergus mac Róich.[1][3] Hikaru Sakurai is the scenario writer for his character.[3]


  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 1.24 1.25 1.26 1.27 1.28 1.29 1.30
  2. Fate/Grand Order Material II - Fergus profile
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 Fate/Grand Order material II - Fergus mac Róich, p.306-315, translated by crow_claw at Reddit.
  4. 4.0 4.1 4.2 4.3 4.4 4.5
  5. 5.0 5.1 5.2 5.3 5.4 Fate/hollow ataraxia - The past is already
  6. Fate/Grand Order - Salomon: The Grand Time Temple - Act 06: V / Arsenal Halphas
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