- Simon Callow - MI6 liaison officer Elihu
- Gergo Danka - Zoltan
- Lynne Deragon - Female Cutout
- Fernanda Dorogi - Agrippina
- Kriszta Dorogi - Serafima
- Craig Eldridge - Coach Waltz
- Péter Fancsikai - Russian Soldier
- Ilona Kassai - Ancient Woman
- Judah Katz - FBI Agent
- László Keszég - Russian Immigration Bureaucrat
- Peter Krekits - Young Budapest Man in Crowd
- Phillip MacKenzie - CIA doctor
- Catherine McNally - CIA doctor
- Paul Mota - CIA Detective
- Zoltan Papp - AVH Captain
- Billy Parrott - CIA tech
- Dan Petronijevic - Young CIA Officer
- John Rado - KGB Clerk
- Richard Rifkin - Dr. Sydney
- Anna Silk - Stella Bledsoe
- Oliver Simor - Agent
- Sándor Szûcs - AVH Man with Photos
- Angelo Tucci - CIA operative
- Ted Atherton - Frank Wisner
- Alfred Molina - Harvey Torriti
- Alfred Molina - Harvey Torriti / The Sorcerer
- Antony Sher - Ezra ben Ezra, the Rabbi
- Erika Marozsán - Azalia Ivanova
- Kristin Booth - Adelle Sweet Kritsky
- Raoul Bova - Roberto Escalona
- Cedric Smith - Allen Dulles
- Joe Lisi - Sam Giancana
- Rick Roberts - William Colby
- Ramón Franco - Arturo Padron
- Martin Doyle - Dick Bissell
- Alessandro Nivola - Leo Kritzky / Captain Duval
- Mike Turner - Manny Ebbitt
- JB Blanc - Manuel Piniero
- Hristo Mitzkov - Vanka Borisov
- Barry Flatman - Philip Sweet
- Péter Rudolf - Fallen Angel
- Gábor Nagypál - CIA Associate Sweet Jesus, Berlin
- Zoltán Berzsenyi - Nikita Khruschev
- László Konter - Yevgeny's father Tsipin
- Levente Törköly - Constantine Vishnevsky
- Natascha McElhone - Elizabeth Nemeth
- Mišel Matičević - Arpad Zelk
- Ron Binkowski
- David W. Zucker
- Ridley Scott
- Robert Bernacchi
- Tony Scott
- Rola Bauer
- Jeff Beal
Alessandro Nivola interpreta a Leo Kritzky / Captain Duval en la serie.
Ulrich Thomsen interpreta a Starik Zhilov en la serie.
Rick Roberts interpreta a William Colby en la serie.
Alfred Molina interpreta a Harvey Torriti en la serie.
Chris O'Donnell interpreta a Jack McAuliffe en la serie.
Michael Keaton interpreta a James Jesus Angleton en la serie.
Rory Cochrane hace el papel de Yevgeny Tsipin.
Tom Hollander interpreta a Adrian Philby en la serie.
Derek Aasland interpreta a LSD Scientist en la serie.
Hayley Andoff interpreta a Erika Kritzky en la serie.
Capítulo disponible en las siguientes plataformas: