Elenco (na ordem dos créditos)
Dustin Lance Black
Self
Scott Nelson
Self - technical advisor, FBI
Leonardo DiCaprio
Brian Grazer
Clint Eastwood
Erica Huggins
J. Edgar Hoover
Self (archiveFootage)
Robert Lorenz
Sheridan Harvey
Self - research librarian, Library of Congress
Naomi Watts
Armie Hammer
Denis O'Hare
Lea Coco
Maria Cecile Callier
Citizen