Previously known as the Black Knight, Berserker is a Servant who possesses the ability to use practically any object as a Noble Phantasm, allowing him to match Gilgamesh in combat. His madness has reduced him to a mindless, though dangerously skilled, fighter. Despite his insanity, he is still able to instinctively recognize Saber. When Saber finally learns Berserker's true identity, she is devastated that her decisions in life and her adherence to chivalry had caused her friend such suffering even after dying.
He possesses three Noble Phantasms, the first of which is For Someone's Glory: Not For One's Own Glory, which envelopes him in a black fog that makes his outline blurred and his status unreadable to other Masters. By use of a Command Spell, it is possible to use the fog to allow Berserker to mimic another's appearance, although it is noted that had Lancelot been summoned under a different Class, he would be able to freely disguise at will. Knight of Honor: A Knight Does Not Die with Empty Hands, allows him to turn anything he recognizes as a weapon, into a D- ranked Noble Phantasm. If he grabs hold of others' Noble Phantasms, he claims them temporarily as his own and their original rank is retained. His last Noble Phantasm, Arondight: The Unfading Light of the Lake is a magical sword which, when drawn, dispels For Someone's Glory and Knight of Honour, boosts all his parameters and grants him additional prowess against beings with a 'dragon' attribute such as this war's Saber.

An arrogant, selfish, and enigmatic Archer-class Servant. He appears familiar with Fuyuki City and claims to have a past relationship with Saber. Typically clad in an ornate golden armor, he possesses an immense number of Noble Phantasms, though none are representative of his true identity.

Kazuma is a former member of the Kannagi household. He was banished from the family by his father after he was defeated by Ayano during the Successor Ceremony for the Enraiha, his family's sacred sword. Since Kazuma is a son from the main family, making him the legitimate successor, even his own father considered him a disgrace for lacking the power to use fire magic, his family's specialty. Four years later, at the age of twenty-two, he returns to Japan as a skilled master of the wind arts. Though he was not responsible for the killings in the Kannagi household that began to occur upon his return to Japan, he is still prepared to start a war with his former family.

Cars is the leader of the Pillar Men. He is intelligent, ruthless, and single-minded in his dedication to obtaining the Red Stone of Aja. Strangely, despite his apathy towards humans and willingness to kill them, he has been shown to be more compassionate for other living beings. In Switzerland, he sliced a car that was about to hit a puppy in half, and later on maneuvered himself during a long fall to miss a patch of flowers near the bottom of the cliff. Cars' power is that of light; he is able to produce bladed appendages from his arms and use these to reflect blinding light toward his enemies. He also has the same powers over his body that all the Pillar Men share.

He is named after the 80's new wave group The Cars.

Gilgamesh