Arthur is a recurring character in the sixth season. He is played by guest star Nathanael Saleh and first appears in "Oathbreaker". He was part of Varys's network of informants and spies, and he is now under the command of Qyburn.
In "The Winds of Winter", Arthur is found luring Lancel from the Great Sept of Baelor, presumably under the command of Cersei and Qyburn, to a maze of tunnels underneath the Sept. At the last minute he darts out of sight, leaving Lancel exposed. He stabs the unsuspecting sparrow in the spine, paralysing him. He studies the man, before leaving him to die, and fleeing down the tunnels and disappearing.
|Season Six appearances|
|The Red Woman||Home||Oathbreaker||Book of the Stranger||The Door|
|Blood of My Blood||The Broken Man||No One||Battle of the Bastards||The Winds of Winter|