J. Robert Oppenheimer

~ as ~

Self (archive footage)

Ellen Bradbury Reid

~ as ~

Self - Daughter of Los Alamos Scientist

Christopher Nolan

~ as ~

Self - Writer / Director, "Oppenheimer"

Jon Else

~ as ~

Self - Filmmaker, "The Day After Trinity"

Kai Bird

~ as ~

Self - Co-Author, "American Prometheus"

Bill Nye

~ as ~

Self - Science Educator

Richard Rhodes

~ as ~

Self - Author, "The Making of the Atomic Bomb"

Mareena Robinson Snowden

~ as ~

Self - Nuclear Security Expert

Alan B. Carr

~ as ~

Self - Senior Historian, Los Alamos National Laboratory

Gregg Herken

~ as ~

Self - Author, "Brotherhood of the Bomb"