Susan Blackwell as Dinner Wife
Seth Barrish as Layout Editor
Ben Livingston as Dennis Doolin
Pat Healy as Phil Geyelin
Stephen Mailer as Exchange President
Carolyn McCormick as Mrs. McNamara
John Farrer as Motorcycle Officer (uncredited)
Sarah Paulson as Tony Bradlee
David Costabile as Art Buchwald
Deirdre Lovejoy as Debbie Regan
Catherine Wolf as RAND Receptionist
David Aaron Baker as Alexander Bickel
Bradley Whitford as Arthur Parsons
Cotter Smith as William Macomber
Gary Wilmes as Punch Sulzberger
Stark Sands as Don Graham
Alison Brie as Lally Graham
Patrick Noonan as LA Cop
Matthew Rhys as Daniel Ellsberg
Jesse Plemons as Roger Clark
Jennifer Dundas as Liz Hylton
Neal Huff as Tom Winship (uncredited)
Justin Swain as Neil Sheehan
Will Denton as Michael (Runner)
Jordan Baker as Dinner Wife
Frank Ridley as NY Times Staffer
Michael Stuhlbarg as Abe Rosenthal
Tina Sloan as Woman (uncredited)
Dan Bucatinsky as Joe Alsop
Kenneth Tigar as Solicitor General Griswold
Daniel Schorr as Self (archive footage) (uncredited)
Harry S. Truman as Self (archive footage) (uncredited)
Tracy Letts as Fritz Beebe
Walter Cronkite as Self (archive footage) (uncredited)
Francis Dumaurier as Head Waiter (Oak Room)
Steve Witting as NY Times Staffer
Lyndon Johnson as Self (archive footage) (uncredited)
Philip Casnoff as Chalmers Roberts
David Beach as Robert Komer
Johanna Day as Ann Buchwald
John Rue as Gene Patterson
Stephen Rowe as Judge Robb
Peter Van Wagner as Harry Gladstein

Sean Meehan as Suspicious man
Richard Holmes as Murray Marder
Mark Jacoby as Chief Justice Burger
Clarke Thorell as Layout Editor
Annika Boras as Mrs. Alsop
Brendan Burke as Rand Corp Guard
Shaun O'Hagan as Harry Rowen (RAND)
Jake Wells as NY Times Staffer (uncredited)
John F. Kennedy as Self (archive footage) (uncredited)
Dwight D. Eisenhower as Self (archive footage) (uncredited)
Kelly Ryan as Joan Fountaine (uncredited)
Anthony M. Walker as G.I.
Sasha Spielberg as Woman with Package
Gary Galone as NY Times Staffer
Michael Cyril Creighton as Jake (Young Reporter)
Zach Woods as Anthony Essaye
Matthew Piazzi as Newscaster
Curzon Dobell as Nixon
Angus Hepburn as Judge Gessell
Dan Bittner as Government Lawyer
Robert Arensen as Copy Editor (uncredited)
Joel Nagle as Man on Phone
Richard R. Corapi as Washington Post Attorney (uncredited)
Brett G. Smith as Platoon Leader (as Brett Smith)
Carrie Coon as Meg Greenfield
Marko Caka as NYPD Officer (uncredited)
Cory Kastle as War Veteran (uncredited)
Fenton Lawless as Linotype Printer
Mark Falvo as Reporter (uncredited)
Marla Aaron Wapner as Commuter (uncredited)
Doris McCarthy as Wealthy New Yorker (uncredited)
Bryan Burton as Lafayette Protester
Eden Wright as Protester (uncredited)
Scott Eliasoph as U.S. Marshal (uncredited)
Odiseas Georgiadis as Protest Singer
Will Blomker as LA Cop
Luke Slattery as NY Times Runner
JaQwan J. Kelly as Watergate Security Guard (as Jaqwan Kelly)
Aaron Roman Weiner as Bob Haldeman
Brett Diggs as G.I. (as Brett J. Diggs)
Coral Peña as Nancy
Austyn Johnson as Marina Bradlee
Rob Tunstall as Maximillian Brode / NYSE Brroker (uncredited)