Rudbornn Chelute

is an Arrancar in Sōsuke Aizen's army and the captain of the Exequias.

Character outline
Unlike most Arrancar, his face is hidden. He is distinguished from the other Exequias with his bull-shaped skull, instead of the typical human-shaped skulls his subordinates wear. He seems to know Dordonii.

Synopsis
He and his subordinates clean up after each battle, collecting data before killing any survivors: they killed Dordonii and Cirucci Thunderwitch off screen for failing to win against their opponents, and prepared to do the same with Chad and Gantenbainne Mosqueda before being approached by Retsu Unohana and Isane Kotetsu. Surprised by the arrival of a captain-level Shinigami, Rudobon and the rest of the Exequias withdraw in order to avoid conflict. He and the rest of the Exequias appear in front of Ichigo in order to prevent him from reaching Ulquiorra and Orihime however, Ichigo's friends engage the Exequias in order to allow Ichigo safe passage. Rudobōn told the others not to let themselves be distracted by this though and made his way to his target before being halted by Rukia, who caught his sword and hand in ice. Soon after, he is able to break the ice fairly easily. Later it is shown that Rukia has defeated all of his underlings, leaving Rudobon only to say she will soon learn that defeating his underlings won't bring her to victory. He then releases his zanpakuto, Arbola.

Zanpakutō
Arbola (Spanish for "Tree")
 * Resurrección Its release comand is "Rise Up". In his released state, the right side of Rudobōn's body becomes wrapped in branches reaching down to his waist, where they split off into roots that flare out on either of Rudobōn's sides. Four lightning bolt shaped branches grow out of the upper part of his right arm, with what appear to be either large bellflowers or skulls similar to those worn by his subordinates hanging off of each one. He also carries a lightning bolt shaped stick or branch.