J. Rutherford Pierce

J. Rutherford Pierce is the main antagonist of The 39 Clues: Unstoppable. He is the power hungry and ruthless founder and leader of Founders Media and a candidate for president.

Personallity
J. Rutherford Pierce is undeniably ruthless, sadistic, ambitious and completely immoral. He is willing to do whatever it takes to gain power and take over the world, having no problems whatsoever with killing billions of innocent people and anyone who gets in his way. He spreaded lies and slander about the Cahills to make it hard for them to escape the goons he sends to kill them.