Alcides is Hercules from Fate/stay night in the Archer Class
Unlike Hercules, who is incapable of dialogue, Alcides, on the other hand, already possesses this ability, and this is due to the fact that they are the same character, but in different classes.
Alcides is Hercules from Fate/stay night, but in the Archer class, where he is more in control of himself for the Holy Grail War in Snowfield.
Alcides is Hercules from Fate/stay night in the Archer Class
In Fate/Grand Order, it is very common for multiple versions of the same Servant to exist in different classes, especially when they are popular characters. One example is Saber (Artoria Pendragon), who has more than 10 versions in different classes.
There are also more versions of her in other classes such as Ruler, Assassin, Caster, etc. Alcides is Hercules from Fate/stay night because this is a concept widely used within the franchise with popular characters, but new fans may be surprised.
Alcides is the human side of Hercules, where his divinity and immortality were lost due to the influence of the Command Spells of Bazdilot Cordelion (his master), which awakened memories of his past life and the mud of the Fuyuki Grail.
Given the circumstances, Alcides could be called Hercules Alter, although he refuses it. Alcides was Hercules’ birth name. The goddess Hera hated Alcides because he was born from her husband Zeus’ betrayal with a mortal, and because of that, she spent his entire life tormenting him and trying to kill him.
On one occasion, Hera pushed Alcides to his limit and made him kill his wife and son. In an attempt to calm his madness, the Oracle of Delphi made Alcides change his name to Hercules, which means “glory of Hera.”
Alcides was then instructed by Apollo to complete the Twelve Labors to atone for killing his family. During that time, he also joined the Argonauts. As an Avenger (his third class in addition to Archer and Berserker), Alcides uses his old human name because he hates the gods for what they did to him. Alcides is Hercules from Fate/stay night, giving us another animated character alongside Gilgamesh from the novel written by Kinoko Nasu.