F/GO - All & over 100 playable servants are leaked. (New update: 9 Feb 2017).

Renari cracks the code list of the game.

While Sasaki546 collects all voice actors and artists, and finds that there are more and new servants, to be announced later. (Over 100+ playable servants)

Update 23 July: Bold all servants’ name have been confirmed.

https://bbs.sumisora.org/read.php?tid=11070637

Fate/Stay Night, Hollow Ataraxia & Unlimited Codes

Arturia Pendragon



Saber Alter



Santa Alter (New)

Saber Lily

Heroine X (New)

Heroine X Alter (New)

Arturia Lancer (New)

Arturia Alter Lancer (New)

Arturia Swimsuit Archer (New)

Emiya



Emiya Alter (New)

Gilgamesh



Gilgamesh Caster (New)



Kogil (Child version of Gilgamesh)

Cu Chulainn

Cu Chulainn Alter (New)

Cu Chulainn Caster (New)

Medusa

Medusa Gorgon (New)

Medusa Lancer (New)

Heracles

Medea

Medea Lily (New)

Sasaki Kojiro

Cursed Arm Hassan

Angra Mainyu

Stheno (New)

Euryale (New)

Bedivere (New)

Merlin (New)

Jaguar Man (Taiga Fujimura, new)

Isthar (Rin Tohsaka, new)

Parvati (Sakura Matou, new)

Fate/Zero

Diarmuid

Diarmuid Saber (New)

Iskandar

Alexander (Child version of Iskandar, new)

Lancelot



Lancelot Saber (New)



Gilles de Rais



Gilles de Rais (Saber)



Hundred Faced Hassan

Fionn McCool (As younger version, new)

Emiya Kiritsugu (As Assassin, new)

Irisviel von Einzbern (As Dress of Heaven, new)

Zhuge Liang (Lord-El-Melloi / Waver Velvet, new)



Fate/Apocrypha

Jeanne d’Arc



Jeanne d’Arc Alter (New)

Jeanne d’Arc Santa Alter Lily (New)

Sieg



Siegfried



Chiron



Vlad III (as Berserker)



Astolfo



Astolfo Saber (New)

Frankenstein



Avicebron



Jack The Ripper



Mordred



Mordred Swimsuit Rider (New)

Atalanta



Karna



Achilles



Spartacus



Shakespeare



Semiramis



Amakusa Shirou

Fate/Extra & Fate/Extra CCC

Nero



Nero Bride

Mother Harlot (Nero as Rider servant?, New)

Tamamo no Mae



Tamamo Swimsuit Lancer (New)

Tamamo Cat (New)

Elizabeth Bathory



Elizabeth Bathory Halloween (New)

Elizabeth Bathory Brave (New)

Hans Christian Andersen

Suzuka Gozen

Gawain



Robin Hood



Vlad III Extra



Francis Drake



Lu Bu

Nursery Rhyme

Li Shuwen (Assassin)

Li Shuwen (Younger version, as Lancer)

Meltlilith

Passionlip

Kingprotea

Kazudrop

Violet

Fate/strange Fake

Enkidu



Fate/Koha Ace

Okita Souji



Oda Nobunaga



Fate/Kaleid Prisma Illya

Illya von Einzbern



Chloe von Einzbern



Kara no Kyoukai

Ryougi Shiki



Ryougi Shiki Saber



Fate/Prototype

Arthur Pendragon



Gilgamesh Prototype



Cu Chulainn Prototype



Perseus



Perseus Lancer (New)

Arash

Ozymandias



Paracelsus



Serenity Hassan

Fate/Grand Order (All brand new servants)