Percival is a Sword Art Online player and member of the Royal Knights.
He has neck-length dark brown hair and yellow eyes. He wears a vest and trousers, colored black and violet with an orange trim. On his pants, he wears a brown belt with the symbol of the Royal Knights on its silver buckle. He also dons wrap-up sandals. On his right hand, he has a violet and orange wristband.
He Carries the sheath of his dagger on the left side of his belt and the sheath of his spear on his back. While not on battles nor on a mission, he wears a white long t-shirt on his shoulders.
Percival is the most relaxed member of the guild. Generally joking with others and keeping up the spirit among the group, especially in difficult situations. When someone is sad, he tries to cheer up him or her. Everybody likes Percival for his value of friendship.
He also tended to be sometimes distracted and confused. When someone or something threatens to hurt one of his friends, without thinking it, he is the first one to show up, and save that person.
He attended school as every typical boy of his age. Among his classmates where his friends: Galant, Lance, Guinevere, Gawn, Dagonet, Bors, Tristan, and Galahad. Thanks to the last one, they obtained the game Sword Art Online and the NerveGear, due his father was a worker in Argus. They logged in and soon discovered that they could not log out. When Kayaba Akihiko revealed his true intentions creating SAO, they created a guild called "Royal Knights".
Percival is a late friend of Galant, that joined the group alongside Galahad and Tristan.
Percival acts as Galant's right-hand man at the time of recognition and hunting, alongside Percival's best friend, Tristan. He also tends to keep up the spirit in the guild in hard situations and acts as neutral when there is a conflict inside the guild.
Percival is another of Guinevere's friends, as he also confronts her, especially when he was sad during the first days of SAO, a thing not even Galant could do. Since that moment they also standard as good friends.