Seven Servants and three Pseudo-Servants appear in the animated special Fate/Grand Order x Himuro's World: Seven Most Powerful Great Figures Chapter. Aside from the Pseudo-Servants, they are all from the Fate/school life Servant creation contest. The Holy Grail War is revealed to have been a story by Yukika, so it is unknown how they apply to actual series' lore.
Lê Lợi
Lê LợiWP (黎利WP, Rei Ri?), Class Name Saber (セイバー, Seibā?), is the Saber-class Servant of Kane Himuro.
In the story, she kills Berserker and fights Caster before being sent flying by Plato.
Mehmed II
Mehmed IIWP (メフメト2世WP, Mefumeto 2-sei?), Class Name Archer (アーチャー, Āchā?), is the Archer-class Servant of Ayako Mitsuzuri.
In the story, he and his master observe Caster defeating Lancer.
Lucky Mother
Lucky Mother (ラッキー・マザー, Rakkī Mazā?), Class Name Lancer (ランサー, Ransā?), is the Lancer-class Servant of Issei Ryuudou. She is the Mitochondrial EveWP (ミトコンドリア・イヴWP, Mitokondoria Ibu?).
In the story, she fights Caster, evading her rockets in mid-air before being caught in a blast of flame along with her master.
Diogenes
DiogenesWP (ディオゲネスWP, Diogenesu?), Class Name Rider (ライダー, Raidā?), is the Rider-class Servant of Kaede Makidera.
In the story, he and his master are incinerated mid-flight by Caster's flames.
Leo III
Leo IIIWP (レオ3世WP, Reo 3-sei?), Class Name Caster (キャスター, Kyasutā?), is the Caster-class Servant of Saeki Naomi.
She carries a tubeWP which she uses to launch rockets, emit fire and for propulsive flight.
In the story, she defeats Lancer and Rider, and fights Saber before being sent flying by Plato.
Their design is based off Ultraman LeoWP.
Nevil Shute
Nevil ShuteWP (ネビル・シュートWP, Nebiru Shūto?), Class Name Berserker (バーサーカー, Bāsākā?), is the Berserker-class Servant of Gai Gotou.
His body is that of a PanjandrumWP, with arms, legs and a mask-like face protruding from it.
In the story, he appears when his master confronts Kane Himuro outside the school, and while distracted by the sight of him being beaten up by her, he is killed by Saber.
Plato
PlatoWP (プラトンWP, Puraton?), Class Name Ruler (ルーラー, Rūrā?), is the Ruler-class Servant of Yukika Saegusa.
In the story, he breaks up the fight between Saber and Caster at his master's request, sending both of them flying.
Pseudo-Servants
Takuboku Ishikawa
Takuboku IshikawaWP (石川 啄木WP, Ishikawa Takuboku?), Class Name Assassin (アサシン, Asashin?), is an Assassin-class Pseudo-Servant inhabiting the body of Kaede Makidera.
Amelia Jenks Bloomer
Amelia Jenks BloomerWP (アメリア・ジェンクス・ブルーマーWP, Ameria Junkusu Burūmā?), Class Name Caster (キャスター, Kyasutā?), is a Caster-class Pseudo-Servant inhabiting the body of Kane Himuro.
She is summoned after Kane had rejected the previous options presented to her by the Counter Force (Taro and JiroWP, LaikaWP, New NessieWP and Kajikawa YosobeiWP).
Friedrich Nietzsche
Friedrich NietzscheWP (フリードリヒ・ニーチェWP, Furīdorihi Nīche?) appears as a Pseudo-Servant inhabiting the body of Yukika Saegusa.[1] Her class is unknown.