Anguy is a skilled archer hailing from the Stormlands and a member of the Brotherhood Without Banners.
Anguy is among the company of Thoros of Myr when they come across Arya Stark, Gendry and Hot Pie. He coerces an unwilling Hot Pie into following them to a nearby inn by making an impressive trick-shot. Later on, he presents a captured Sandor Clegane to his companions and is met with a roar of approval, and is present when Sandor reveals Arya's identity.
After bringing his captive before Beric Dondarrion, he voices his disgust over the atrocities committed by the Lannister forces at the Mummer's Ford. Later he is present during the trial by combat which the Hound kills Lord Beric and is freed from his accusations.
Anguy teaches Arya how to shoot a bow properly, when confronted by Melisandre, who has come to claim Gendry for the Lord of Light. He does nothing to stop her, earning himself the wrath of Arya.
When Arya runs away from the Brotherhood, Anguy is sent to bring her back. He is unsuccessful when she is captured by the Hound instead and taken away.
A champion archer, Anguy, like Lord Beric, is from the southern Stormlands.