Andrew Gilbert Mills (アンドリュー・ギルバート・ミルズ,Andoryū Girubāto Miruzu), also known as Agil (エギル, Egiru) in Sword Art Online (SAO), ALfheim Online (ALO), and Project Alicization. He is a recurring character of the Sword Art Online series and was one of the 10,000 players who were trapped in «Sword Art Online» (SAO), where he was a veteran axe-wielder and a merchant who owned a shop in Algade. After returning to the real world in the aftermath of the Sword Art Online incident, Andrew began playing ALfheim Online (ALO) as a Gnome. In the real world, Andrew manages owning the «Dicey Café» with the help of his wife.
In the Japanese version, he is voiced by Hiroki Yasumoto|}} and in the English version, he is voiced by Patrick Seitz
Agil is a kind, friendly and very helpful person who is always looking out for others. He is also someone to rely on such as when he defended the beta testers against Kibaou, giving Kirito a place to stay, and helping players on lower floors. He also can be a leader on the battlefield and will help his comrades and friends no matter what the cost may be. Although he acted as if he only cared about the money, Kirito commented that Agil had spent all of his money helping mid-level players level up.
Andrew is of African heritage. He is a massive and bulky bald man with a brown goatee and brown eyes. He also has two silver earrings on his left ear. Kazuto also commented that he is as large in real life as he is in-game.
Andrew's parents took a liking to Japan. He was born in Ueno, Tokyo, and he opened his coffee shop-bar in Okachimachi at the age of 25. Among his customers was a woman, named Kathy, who was a foreigner, lived nearby and shared interests with Andrew, thus Andrew and Kathy eventually got married. Afterwards, Andrew became trapped in SAO for two years and when he came back, he expected the shop to have closed long ago, but it was saved by his wife's efforts.