To End All War: Oppenheimer & the Atomic Bomb

Mareena Robinson Snowden

Self - Nuclear Security Expert

Alan B. Carr

Self - Senior Historian, Los Alamos National Laboratory

Gregg Herken

Self - Author, "Brotherhood of the Bomb"

Jennet Conant

Self - Author, "109 East Palace"

David Eisenbach

Self - History Professor, Columbia University

Alex Wellerstein

Self - Nuclear Historian

Martin J. Sherwin

Self - Co-Author, "American Prometheus" (voice)

Michio Kaku

Self - Theoretical Physicist

Leslie Groves

Self - Director, Manhattan Project (voice) (archive sound)