Leonardo DiCaprio | J. Edgar Hoover | |
Geoff Pierson | Mitchell Palmer | |
Kaitlyn Dever | Palmer's Daughter | |
Gunner Wright | Dwight Eisenhower | |
Ed Westwick | Agent Smith | |
Kelly Lester | Head Secretary |
Josh Hamilton | Robert Irwin | |
Cheryl Lawson | Palmer's Wife | |
Brady Matthews | Inspector | |
David A. Cooper | Franklin Roosevelt | |
Naomi Watts | Helen Gandy | |
Jack Donner | Edgar's Father |