Author and conspiracy theorist David Icke claims that reptilian humanoids are the force behind a worldwide conspiracy directed at manipulation and control of humanity. He contends that most of our world's leaders, from George W. Bush to British royal family, are in fact seven-foot tall, blood-drinking reptilians.

According to an interview with David Icke, [11] Christine Fitzgerald, a confidante of Diana, Princess of Wales, claims that Diana told her that the Royal Family were Reptilian aliens, and that they could shapeshift. David Icke and others have claimed that U.S. President George W. Bush and his family are part of this same bloodline. (Icke, 2004)

David Icke claims, based on his exploration of genealogical connections to European royalty, that many presidents of the United States have been and are reptilian humanoids. In his view, United States foreign policy after September 11 is the product of a reptilian conspiracy to enslave humanity, with George W. Bush as its key player.