David McCullough
— Self - Host
William Stanley Merwin
— Self - Narrator (voice)
Tom Wicker
— Self - Journalist
Albert Eisele
— Self - Biographer
Ted Van Dyk
— Self - Humphrey Staff
Marilyn Katz
— Self - Antiwar Activist
David Dellinger
— Self - Antiwar Activist
David Farber
— Self - Historian
Roger Wilkins
— Self - US Justice Department
Joel Weisman
— Self - Chicago Journalist
David Stahl
— Self - Chicago Deputy Mayor
Abe Peck
— Self - Anitwar Activist
Thomas Foran
— Self - US Attorney, Illinois
Rennie Davis
— Self - Antiwar Activist
Richard Samuel
— Self - McCarthy Delegate
William Frapolly
— Self - Undercover Police
Mike Spiegel
— Self - Antiwar Activist
Frank Sullivan
— Self - Police Spokesman
Tom Hayden
— Self - Antiwar Activist
Reuven Frank
— Self - NBC News
David Ginsburg
— Self - Humphrey Staff
Edward Collins
— Self - Chicago Police
Bill Ayers
— Self - Antiwar Activist
Jean Wallin
— Self - McCarthy Delegate
Joseph Alioto
— Self - Mayor, San Francisco (archive footage)
Richard J. Daley
— Self (archive footage)
Wayne Hays
— Self - Representative, Ohio (archive footage)
Hubert H. Humphrey
— Self (archive footage)
Eugene McCarthy
— Self (archive footage)
Pierre Salinger
— Self - Convention Speaker (archive footage)