Ganzo is quick to anger. He is quick to become worked up over many things, to even his family and others close to him. Though he seems to be loyal to his family, he secretly conspired to take them out so he can take over his family.
History
Ganzo is first show at a meeting with his family. He's revealed to be the 4th man in the Lagusa job and the writer of the letter sent to Avilio.