September 11, 2001 remains a tragic day in American history. Thousands of lives were lost, and the global repercussions of what happened at the World Trade Center and the Pentagon are still felt today. But while everyone agrees on the horror of the event, some famous actors, musicians, and athletes believe that the whole truth about September 11 has yet to come out. Some of these celebrity 9/11 truthers question the way the buildings came down and others are suspicious of who profited from the incidents.
Who appears on this list of famous people who are 9/11 truthers? Back in 2006, Charlie Sheen expressed his doubt about the public story of the tragedy. "We're not the conspiracy theorists on this issue," he said. "It seems to me like 19 amateurs...taking over four commercial airliners and hitting 75 percent of the targets – that feels like a conspiracy theory." Sheen's father, Martin Sheen, is also a 9/11 truther. Other celebrities who are 9/11 truthers include Mark Ruffalo, Willie Nelson, and Roseanne Barr.