Hassan-i-Sabbah is the title given to the Leaders of the Hashashin order.
There are 19 Hassan-i-Sabbah in total. Only 5 are playable in Fate/Grand Order.
Playable Servant
| ID | Icon | Servant Name | Stars |
|---|---|---|---|
| 40 | 
|
Hassan of the Cursed Arm | ★ ★ |
| 110 | 
|
Hassan of the Hundred Faces | ★ ★ ★ |
| 124 | 
|
Hassan of the Serenity | ★ ★ ★ |
| 154 | 
|
"The Old Man of the Mountain" | ★ ★ ★ ★ ★ |
| 408 | 
|
Hassan of the Shining Star | ★ ★ ★ ★ |
Enemy
An type of Enemy that appeared in the Fate/Accel Zero Order Event and in Camelot.
In Fate/Zero, there are 100 variety of Hassans under one Servant - Hassan of the Hundred Faces. Each one of them has a different personality and the power of each Hassan is equivalent to (1/100 of the Original Hassan). Each one of them are part of the Noble Phantasm - Zabaniya.
Comes in 3 variants.
| Icon | Name | Classes | Attribute | Gender | Trait |
|---|---|---|---|---|---|
|
Gozul the Strong | 
|
Man | Male | Enuma Elish Nullification, Humanoid, Servant, Seven Knights Servant |
|
Makule the Quick | 
|
Man | Male | Enuma Elish Nullification, Humanoid, Servant, Seven Knights Servant |
|
Zayed the Base |
|
Man | Male | Enuma Elish Nullification, Humanoid, Servant, Seven Knights Servant |