The man behind Disney’s meteoric rise over the past decade stepped down from the throne at the end of February. Disney was massive long before, but in his 15 years at the helm, former CEO Bob Iger, 69, brought the House of Mouse to astronomical heights. He was behind key acquisitions that helped Disney to increase its annual revenue by over 200% since he took over in 2005. Few industry leaders have made quite a mark as Iger, and his successor (conveniently, another Bob), Disney parks chairman Bob Chapek, has big shoes to fill. Read on as we outline his success, what brought him there, and what lies ahead for the world’s most unstoppable movie studio.