Coyote Starrk

Zanpakutou: Los Lobos (The Wolves)
Aspect of Death: Loneliness
Birthday: January 19
Height: 187 cm (6'1½")
Weight: 77 kg (169 lbs)

Starrk is a male arrancar who appears to be very lazy. His shoulder-length hair is dark and parted down the middle. He also has a goatee. The remains of his hollow mask consist of a bottom jaw that is positioned like a necklace. His hollow hole is on his sternum, right below the tip of his mask. When Aizen sends him to reclaim Orihime Inoue, he states he is uncomfortable doing so, though is able to accomplish the task in an instant despite Kenpachi Zaraki's and Ichigo Kurosaki's attempts to stop him. He then appears as 1 of the top 3 Espada in the raid on Karakura town.

His number is 1, located on his left hand. Lilynette is revealed to not be his fraccion but actually a part of him. They separated their souls into two bodies when becoming arrancar. When they are one, their powers are released. Stark's ability is to separate fragments of his soul into Wolves that become like weapons he and Lilynette can control. They even refer to them as separate entities, Stark saying to his own wolves "Let's go, Stark."
(Source: Wikipedia)