Petrol announced that Karl Stewart, formerly VP of Strategic Marketing Europe & North America at Square Enix, is joining the agency as its VP of Brand Development & Strategic Partnerships. Most recently, Karl led the development and implementation of integrated Brand and Marketing strategies across Square Enix's studios and publishing arms in North America & Europe. At Petrol, Karl's focus will be the Strategy & Planning department, and developing large-scale international campaigns for the agency's wide array of clients.