"The Most Dangerous Man in America" is the story of what happens when a former Pentagon insider, armed only with his conscience, steadfast determination, and a file cabinet full of classified documents, decides to challenge an "imperial" presidency – answerable to neither Congress, the press, nor the people – in order to help end the Vietnam War.

Daniel Ellsberg
as Self (Narraror)

Patricia Ellsberg
as Self

John Dean
as Self - White House Counsel to President Nixon

Howard Zinn
as Self - Historian

Peter Arnett
as Self - Associated Press Correspondent (archive footage)

Ben Bagdikian
as Self - Editor, Washington Post

Ann Beeson
as Self - Associate Legal Director, ACLU

Robert Ellsberg
as Self - Daniel's Son

Richard Falk
as Self - Professor of International Law

Max Frankel
as Self - Washington Bureau Chief, New York Times