

"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
Self (Narraror)
Patricia Ellsberg
Self
John Dean
Self - White House Counsel to President Nixon

Howard Zinn
Self - Historian
Peter Arnett
Self - Associated Press Correspondent (archive footage)
Ben Bagdikian
Self - Editor, Washington Post
Ann Beeson
Self - Associate Legal Director, ACLU
Robert Ellsberg
Self - Daniel's Son
Richard Falk
Self - Professor of International Law
Max Frankel
Self - Washington Bureau Chief, New York Times
J. William Fulbright
Self - Chair Foreign Relations Committee (archive footage)
James Goodale
Self - General Counsel, New York Times
Mike Gravel
Self - Senator (D-Alaska)
Morton Halperin
Self - Supervisor, Vietnam War Study (as Mort Halperin)

Lyndon B. Johnson
Self - President (archive footage) (as Lyndon Johnson)
Randy Kehler
Self - Draft Resister
Bud Krogh
Self - Director, 'Plumbers' Unit (as Egil Krogh)
Pete McCloskey
Self - Representative, California

Robert McNamara
Self (archive footage)
Wayne Morse
Self - Senator, Oregon (archive footage)
Judith Ehrlich
Michael Chandler, Lawrence Lerew, Rick Goldsmith, Judith Ehrlich
Released