Bryar is a Wood Elf immigrant to Skyrim. She became lost in a snowstorm when she was younger and was saved by a mage, Svart, one of the last Nordic Clever Men. She joined him as an acolyte when he recognized her keen connection to the Green magic of the Wood Elves. Svart and his acolytes, Bryar and Hran, take up residence in Snow Veil Sanctum in a new Thieves Guild hideaway after a dungeon-oriented quest. 

Her accent is slightly cockney if you like, but only slight. Bryar has been gone from Valenwood for a long time, she's largely lost her accent. Her dialogue is blunt, short. She says as little as possible.