Rider (ライダー, Raidā?), Mounted Knight and Heroic Spirit of the Mount, is one of the Four Cavalry Classes among the seven standard Servant classes summoned for the Holy Grail War. Servants placed within this Class are those known for riding mounts, whether living beasts or human constructs, during their lives. They generally have lower attributes compared to the Three Knight Classes, but the abilities of the mounts described in their legends compensate by granting them powerful Noble Phantasms or abilities. They have the class abilities of Magic Resistance and a high rank in Riding, allowing them to fully utilize the abilities of their mounts. Depending on the rank, they can take full control of everything from simple horses, modern machinery like motorcycles and planes, and even Divine Beasts. Dragons are the only exception as the ability to ride them falls under a different Skill; however, rare exceptions do occur.
- Servants marked with ‡ are also able to be summoned by the Protagonist in the Grand Orders.
- Servants marked with ⁜ are those who change class mid-story but do not display characteristics substantially different from the original class.
Servants possessing the Class of Rider for special reasons unrelated to a proper summoning.