Jovan Adepo
Saul Durand (8 eps)
Rosalind Chao
Ye Wenjie (8 eps)
Liam Cunningham
Thomas Wade (8 eps)
Eiza González
Auggie Salazar (8 eps)
Jess Hong
Jin Cheng (8 eps)
Marlo Kelly
Tatiana Haas (8 eps)
Alex Sharp
Will Downing (8 eps)
Sea Shimooka
Sophon (8 eps)
Saamer Usmani
Raj Varma (8 eps)
Benedict Wong
Detective Clarence 'Da' Shi (8 eps)
Gerard Monaco
Collins (5 eps)
Jonathan Pryce
Mike Evans (5 eps)
John Dagleish
Felix (4 eps)
John Bradley
Jack Rooney (4 eps)
Zine Tseng
Young Ye Wenjie (4 eps)
Adrian Edmondson
Denys Porlock (3 eps)
Hélène Viviès
Lecompte (3 eps)
Stephen Rahman Hughes
Anwar Suleiman (3 eps)
Bea Svistunenko
Laeticia (3 eps)
Bilal Hasna
Edgar (3 eps)
Yu Guming
Yang Weining (2 eps)
Vedette Lim
Vera Ye (2 eps)
Deng Qiaozhi
Lei Zhicheng (2 eps)
Benjamin Jia
Lead Operator (2 eps)
Ben Schnetzer
Young Mike Evans (2 eps)
Eve Ridley
Follower (2 eps)
Aidan Cheng
Reg (2 eps)
CCH Pounder
Secretary General Lilian Joseph (2 eps)
Lan Xiya
Tang Hongjing (2 eps)
Sun Yan
Commander Song (1 eps)
Yang Hewen
Bai Mulin (1 eps)
Perry Yung
Ye Zhetai (1 eps)
Li Fengxu
Shao Lin (1 eps)
Jeanne Yuan
Teng Lihua (1 eps)
Steve H. Li
Political Instructor Wei (1 eps)
Wang Xuedong
Male Red Guard (1 eps)
Guy Burnet
Rufus (1 eps)
Emily Kimball
Poppy (1 eps)
Stephanie Tarling
Karaoke Singer (1 eps)
James Chu
Professor (1 eps)
Tao Deng
Computer Scientist 1 (1 eps)
Guo Tao
Computer Scientist 2 (1 eps)
Yin Wang
Red Guard Student (1 eps)
Tom Wu
Count of the West (1 eps)
Russell Yuen
Emperor Zhou (1 eps)
Lokky Lau
Engineer (1 eps)
Hon Ping Tang
Sentry 1 (1 eps)
Ali Noorani
Dr. Chowdhury (1 eps)
Kevin Eldon
Sir Thomas More (1 eps)
Ami Tredrea
Scientist (1 eps)
Shalini Peiris
Colleague (1 eps)
Rhys Bevan-John
Researcher (1 eps)
Carlotta Banat
Olivia (1 eps)
Kerena Jagpal
Eva (1 eps)
Mark Gatiss
Isaac Newton (1 eps)
Reece Shearsmith
Alan Turing (1 eps)
Conleth Hill
Pope Gregory XIII (1 eps)
Jenson Cheng
Kublai Khan (1 eps)
Phil Wang
Aristotle (1 eps)
Adrian Greensmith
Galileo (1 eps)
Yiet-Ming Fu
Guard (1 eps)
Ulrich Brandhoff
Gisler (1 eps)
Jordan Alexandra
Siobhan (1 eps)
Nitin Ganatra
Ranjit Varma (1 eps)
Shaheen Khan
Priya Varma (1 eps)
Aarushi Ganju
Nisha Varma (1 eps)
Ranika Kaur
Geeta Varma (1 eps)
Naoko Mori
Marie Curie (1 eps)
Avital Lvova
Ramanujan (1 eps)
Jason Forbes
Omar Khayyam (1 eps)
Stacy Abalogun
Thelma (1 eps)
Edmund Kingsley
Jeremiah (1 eps)
Stella Englisch
Gabrielle (1 eps)
Joe Biden
Self (archive footage) (uncredited) (1 eps)
Rishi Sunak
Self (archive footage) (uncredited) (1 eps)
Maryam Moshiri
BBC Anchorwoman (1 eps)
Jason Barnett
Eugene (1 eps)
Em Thane
Tech 1 (1 eps)
Hywel Morgan
Selwyn Pugh (1 eps)
Lainy Boyle
Mother of Theo (1 eps)
Jarlan Bogolubov
Theo (1 eps)
Lucy Russell
Sally (1 eps)
Dustin Demri-Burns
Ted (1 eps)
Minaree Jayasena
One Earth Volunteer (1 eps)
Sagar Arya
One Earth Official (1 eps)
Mitya Savelau
Dr. Peter Demikhov (1 eps)
Sarah Malin
Doctor (1 eps)
Jim Howick
Harry (1 eps)
Florence Bell
Roxanne (1 eps)
Hassan Mohammed Taj
Chimp Performer (1 eps)
Josh Brener
Kent (1 eps)
Adam Silver
Assassin (1 eps)
Lily Newmark
Nora (1 eps)
Jose Palma
Roberto (1 eps)
Bobak Ferdowsi
Mission Director (1 eps)
Richard James-Neale
Soldier (1 eps)
Clem Cheung
General Hou Bolin (1 eps)
Salem Murphy
Leyla Ariç (1 eps)
Jake Tapper
Jake Tapper (1 eps)
Abby Phillip
Abby Phillip (1 eps)