A mysterious Magician who is often seen with Cordelia Gallo.
not much is known of Brian, he was in the Village of the Gray Wolves in around 1914, setting up electricity in the village. he met his constant companion Cordelia Gallo in a dancing show in Saubureme. he is seen later in flashbacks and in the current story year accompanying her, and also with Wong Ho, a movie producer, who was killed trying to discover Leviathan the Alchemist's secret.
He was also encountered by Kazuya Kujo in Leviathan's tower, who asked what Victorique was to her, as she was nothing but a tool, and promptly defeated Kazuya in a fistfight.
at Beelzebub's Skull, Brian pulled Victorique away from the drugged mist being released, and told her about the Memento Box, that was hid in the Magic Lantern room.
It is later revealed that there are actually two people who use the name Brian Roscoe, who are twin brothers, who were born in the Village of the Wolves, but due to not sharing the traits of the Villagers, they were outcasts, and left the village. they eventually found Cordellia, and travelled with her, considering her to be a mother to them. they both die, one with Cordelia, and the other while helping Victorique escape Saubure, as they defeat Prime Minister Albert De Blois. it is unknown where the brother who fought with Cordelia was laid to rest, but the Roscoe with Victorique was buried at sea.