Clint Eastwood Director, Producer, Original Music Composer
Leonardo DiCaprio John Edgar Hoover
Dermot Mulroney Colonel Schwarzkopf
Naomi Watts Helen Gandy
Jeffrey Donovan Robert Kennedy
Judi Dench Anna Marie Hoover
Stephen Root Arthur Koehler
Lea Thompson Lela Rogers
Adam Driver Walter Lyle
Armie Hammer Clyde Tolson
Denis O'Hare Albert Osborne
Kaitlyn Dever Palmer's Daughter
Josh Hamilton Robert Irwin
Damon Herriman Bruno Hauptmann
Zach Grenier John Condon
Emily Alyn Lind Shirley Temple
Amanda Schull Anita Colby
Joel Cox Editor
Michael O'Neill Senator McKellar
Josh Lucas Charles Lindbergh
Jessica Hecht Emma Goldman
Ken Howard Harlan Fiske Stone
Ed Westwick Agent Smith
Geoff Pierson Mitchell Palmer
Geoff Stults Raymond Caffrey
Richard Nixon Self (archive footage) (uncredited)
David Clennon Senator Friendly
Christian Clemenson Inspector Schell
Ryan McPartlin Lawrence Richey
Gregg Rudloff Sound Re-Recording Mixer
Robert Lorenz Producer
Jack Donner Edgar's Father
Brian Grazer Producer
Kyle Eastwood Stork Club Band
Jack Axelrod Caminetti
Matthew R. Anderson Stunts
Brian Avery Stunts
Steve Monroe Restaurant Host
Buddy Van Horn Stunt Coordinator
Miles Fisher Agent Garrison
Sadie Calvano Edgar's Niece
Duncan Jarman Makeup Artist, Prosthetic Makeup Artist
Gunner Wright Dwight Eisenhower
Josh Stamberg Agent Stokes
Gerald Downey FBI Agent
Fiona Weir Casting
Chuck Waters Stunts
Aaron Lazar Prosecutor Wilentz
Kelly Lester Head Secretary
David A. Cooper Franklin Roosevelt
Jenny Phagan Baker's Wife
Tom Stern Director of Photography
Johnny Cicco Young Agent
Gary Fettis Set Decoration
Dustin Lance Black Writer
Billy Smith Secret Service Officer
James J. Murakami Production Design
Barbara Keegan Bombing Witness
Deborah Hopper Costume Design
Leslie Augustine Lindbergh Nanny (uncredited)
Gregory Hoyt Agent One
Patrick M. Sullivan Jr. Art Direction
Greg Berry Art Direction
Erica Huggins Executive Producer
Tim Moore Executive Producer
David M. Bernstein First Assistant Director
Gary D. Roach Editor
Lea Coco Agent Sisk
Justin Gant Stunts
Gary Werntz Attorney General
Elizabeth Karr Secretary (uncredited)
Jacob Chambers Stunts