- Chris Bauer - James McCord
- Nat Faxon - Bob Haldeman
- Hamish Linklater - Jeb Magruder
- Allison Tolman - Winnie McLendon
- Chris Conner - John Ehrlichman
- Adam Ray - Ron Ziegler
- Anne Dudek - Diana Oweiss
- Allie Marie Evans - Francesca
- Asha Kamali - Linda
- Ellen Karsten - Katarina
- Korbin Marum - Raymond Liddy
- Scott Michael Morgan - Bernard Barker
- Aleksandar Filimonović - Zolton
- Allison Davies - Pat Nixon
- Don DiPetta - Frank Sturgis
- Roy Abramsohn - Garry Moore
- Oscar Torre - Virgilio Gonzalez
- Jordi Caballero - Eugenio Martinez
- Oscar Jordan - Random Office Drone
- David Chan - Party Photographer
- Aisha Lomax - Waitress
- Allan Wayne Anderson - White House Host
- Alyssa Sabo - Carole Feraci
- Alexis Beckley - Ray Conniff Protestor
- Dave Beaudrie - Secret Service Agent
- Michael McCartney - Panel Member
- Frankie Corzo - Youngish Woman
- Summer Schaeffer - Marty's Classmate #1
- Natalia Abelleyra - Skinny Nurse
- J.C. MacKenzie - Howard Hunt
- Nate Corddry - Michael Deaver
- Brian Geraghty - Peter
- Patrick Walker - Frank Wills
- Bill Duke - Charles Anderson
- Ivan Martin - Al Baldwin
- Martha Kelly - Rose Mary Woods
- Paul Chirico - Carl Shoffler
- Harley Jay - John Barrett
- Jerry Hernandez - Alberto
- Nathan Caywood - Paul Leeper
- Eliza Shin - Stewardess
- Agapito Leal - Elderly Janitor
- Rachelle Henry - Howard Hunt's Kid
- Derrick L. McMillon - Burger Guy
- Jack Seavor McDonald - Young Man
- John Carroll Lynch - L. Patrick Gray
- Chris Messina - Angelo Lano
- Carlos Valdes - Paul Magallanes
- Nelson Franklin - Dick Moore
- Patton Oswalt - Chuck Colson
- Jesse Bush - George Beall
- Marin Ireland - Judy Hoback
- Kayden Brenna Tokarski - 13 Year Old Martha
- Emma Jessop - 19 Year Old Martha
- Logan Coffey - Howard Hunt's 18 Year Old Son
- Logan Coffey - Howard Hunt's 18 YO Son
- Louise Barnes - Dorothy Hunt
- Josh Covitt - Bennie McLendon
- Alejandra Flores - Gloria
- Caden Dragomer - Robbie
- Charley Rossman - Sheriff
- Joseph Whipp - Farmer
- G. Larry Butler - Elderly Doctor
- Cecilia Diamond - Howard Hunt's Kid
- Jake Satow - Howard Hunt's Kid
- Erinn Hayes - Peggy Ebbitt
- Billy Smith - Ken Ebbitt
- Reed Diamond - Mark Felt
- John Ventimiglia - John Sirica
- Vincent Di Paolo - Mafioso
- Matt Malloy - Kenneth H. Dahlberg
- Alex Ball - Alexander Butterfield
- Sarah Elizabeth Jensen - Candy
- John Combs - Doctor Feldman
- Jenny Tran - Anna Chennault
- Danny Winn - Nixon
- Andrew Patrick Ralston - Le Cirque Diner 2
- Cinda Adams - Mo's Mother
- Christopher Sanders - Bouncer
- Erin Marie Hogan - Shore Club Couple #1
- Max Pescherine - Shore Club Couple #2
- Shannon Dee - Shore Club Couple #3
- Rich Skidmore - Shore Club Couple #4
- Dominique Generaux - Reporter #1
- Ian Gary - Reporter #2
- Doug Hurley - Field Officer
- Matt Kaminsky - Lawyer 1
- Sean Persaud - Lawyer 2
- Kat Foster - Barbara Walters
- Virginia Gardner - Sharon
- Ahna O'Reilly - Gail Magruder
- Johnny Berchtold - Jay Jennings
- Beth Hall - Helen Thomas
- Beth Malone - Maria
- Ericka Kreutz - Frances Liddy
- Dominic Daniel - Bernard Shaw
- Lisa Carswell - Haldeman's Secretary
- River Drosche - James Liddy
- Lisa Roberts Gillan
- Caroline James
- Rick Perlstein
- Jeanne McCarthy
- Chad Hamilton
- Nicole Abellera Hallman
- Mac Quayle
John Carroll Lynch hace el papel de L. Patrick Gray.
Bill Duke interpreta a Charles Anderson en la serie.
Chris Bauer interpreta a James McCord en la serie.
Sean Penn hace el papel de John Mitchell.
Dan Stevens hace el papel de John Dean.
Betty Gilpin interpreta a Mo Dean en la serie.
Shea Whigham interpreta a G. Gordon Liddy en la serie.
Darby Camp hace el papel de Marty Mitchell.
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