Dondochakka Birstanne

Dondochakka is a large, polka-dotted, arrancar with a tiki mask and compound eyes. He appears to speak with a yakuza-style accent. Despite his menacing appearance, he is prone to tear-filled outbursts at the slightest provocation, usually when he's worried about something. Dondochakka once served Nel when she was an Espada, but had his mask torn off by Nnoitra Jiruga and Szayel Aporro Granz, and was left for dead along with Pesche and Nel. After realizing that Nel had reverted to a defenseless child, he and Pesche pledged to protect Nel by never telling her about her former life. After that event, he travels Hueco Mundo with Pesche and Nel Tu, and their pet, Bawabawa. Like Pesche, he attempts to chase after Nel and Ichigo in Las Noches, but ends up finding Renji instead, who he frequently irritates with his clumsiness and emotional outbursts.

As described by Pesche, Dondochakka possesses numerous insect spirits within his stomach. One of these is the wormlike Hollow Bawabawa. He can spit these spirits out at will as allies in combat. In addition, he carries a kanabō inside his stomach. He can also perform a synchronized cero attack with Pesche, called cero sincrético.