Mark Shouldice, better known as Mark Dice and formerly known as John Conner, is an American Youtuber, right-wing conservative expert, conspiracy theorist, activist, and noted author. first in 2005.

Media analyst and author of several popular books on secret societies and conspiracies, including The Illuminati: Facts & Fiction, Big Brother: The Orwellian Nightmare Come True, The New World Order, Facts & Fiction, Illuminati in the Music Industry, and Inside the Illuminati: Evidence, Objectives, and Methods of Operation.