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