As one of the world’s biggest conspiracy theories, the Illuminati is said to be a secretive global elite which runs governments from behind the scenes and is planning to introduce a New World Order (NWO).
Its key members are said to be drawn from Hollywood and world political and business leaders, with some even accusing its true leaders of being reptilian lizards from space.
Accusations vary in extremities from the simple implementation of the NWO as a goal at the least, to the Illuminati being a highly Satanic cult seeking to return the devil to earth.
However, in a podcast, Mr Hellyer, who was in post in the 1960s, said the Illuminati, at least at its most basic concept, was real and all powerful.
He said corrupt hidden leaders continue to wage needless wars and focus on profits, rather than stopping climate change.
Mr Hellyer claims the technology to reverse climate change has been developed, but it is suppressed by the Illuminati, as most of its key members have big stakes in the fossil fuel industry which they wish to continue for as long as possible.
“You have a got secret cabal that’s actually running the world and they’ve managed to keep this technology under wraps until they can cash in the trillions of oil assets that they’ve got.
“And it’s not going to change until hundreds of thousands of people band together and say look ‘you’ve got to come clean, tell us what is going on, and change your priorities to save the world for further generations instead of blowing it on wars’.”
Mr Hellyer joins the ranks of world famous conspiracy theorist David Icke, the former footballer and BBC1 Grandstand presenter, who came out as a so-called “truther” in the 1990s.
He describes the Illuminati as a cabal and the “Hidden Hand” in lectures across the globe.