Jarrett (ジャレット, Jaretto), formally referred to as Great White (頬白鮫, Hōjirozame), was an Arrancar Battle Doll created and modified by Averian sometime prior to the Winter War to serve as his agent. Under orders from Averian, Jarrett managed to infiltrate Sōsuke Aizen's Arrancar Army to monitor Aizen's activities until he was ordered to fight alongside Sōsuke Aizen's Privaron Espada against Anika's vanguard over Kagamino City. However, Jarrett failed and was promptly killed in his battle with Kenji Hiroshi.