Rapper Jay-Z has his own cartoon character, but it's just a guest role. The New York Times report that the rapper has lent his voice acting skills to online animation programme Secret Millionaires Club, which follows a group of kids who tackle financial emergencies. Created by Warren E Buffet, the business mogul started the series to help youngsters employ sensible financial habits from an early stage. He said: "I saw an opportunity to have a good time and maybe get a fair number of kids in this country started with the right financial habits. Learning at the starting line is so important." On getting Jay-Z to participate in the cartoon, he added: "It was not a tough sell, believe me. He's a real business man, I'm just pretending." Warren concluded that he hopes Secret Millionaires Club will continue as a web-based series for years to come and is looking to hire more high-profile cameos.