Shen was the main antagonist of Kung Fu Panda 2. He was the son of the Peacocks and Boss Wolf and the wolves' leader and boss.
One day, after overhearing the Soothsayer (his former babysitter) talk to his parents about him being defeated by a "warrior of black and white" if he remains evil, he orders his wolf henchmen to destroy a panda village and kill everyone there so he will not be defeated. However, they only succeeded in killing a baby panda's mother, who sacrificed her life to save her baby. Upon discovering this, Shen's parents were forced to banish their only son forever; since then, Shen has been plotting his revenge. In the end, he was defeated when he was crushed by his own cannon during an attempt to kill Po.