Bakuto

was a prisoner at Orochimaru's southern hideout. He had been a prisoner for the longest time and thus felt very close to his fellow inmates. He was freed by Suigetsu on the condition that he spread word of Orochimaru's defeat by Sasuke.

Trivia

 * were itinerant gamblers in Japan from the 1700s to the mid-20th century. They were one of the forerunners of the modern Japanese crime gangs known as yakuza.