Aria:
Servants:
Sinbad: Class: ????

Yukino:
Servants:
Solomon: Class: Ruler
Sheba: Class: Caster
Aladdin: Class: Caster

Lillian:
Servants:
Ja'far, Vittle, Mahad: Class: Assassin
Hakuren: Class: Lancer/Saber:(Coming Soon)

Lan:
Servants:
Karna: Class: Lancer
Hinahoho: Class: Lancer
Mystras: Class: Lancer/????

Tina:
Servants:
EMIYA: Class: Archer
Masrur: Class: Sheilder
Sharrkan: Class: Saber

Rifa:
Servants:
Kouen: Class: Saber/Berserker
Hakuyuu: Class: Saber
Ugo: Class: Caster

Erika:
Servants:
Muu: Lancer/Saber
Lo'lo and Myron: Berserker
Spartos: Lancer

Kennedi:
Servants:
Pisti: Class: Rider
Morgiana: Class: Sheilder

Natelia:
Servants:
Koumei: Class: Caster
Yamriaha: Class: Caster

Lord El-Melloi IV (Derik Waver):
Servants:
Setta: Class: Archer
Yunan: Ruler
Rider: Alexander the Great

Enemy Servants Known so Far:

Hakuie: Class: Lancer
Kouha: Lancer/Berserker
Kougyoku: Saber/Berserker
Hakuryuu: Avenger

A?????: Class: Saber (Coming Soon)
J?????: Class: Avenger (Coming Soon)
Barbarossa: Class: Berserker/Lancer
Dunya: Class: Berserker/Avenger/Saber
Falan: Class: Berserker
Ithnan: Class: Caster
Arba/Gouyokuen: Alter Ego/Berserker

This list will update as the story progresses.