•
Rhys Ifans as the
Chief Designer, the driving force behind the Soviet space program. •
Anna Maxwell Martin as Lyudmilla Raskova, the head of the
KGB surveillance department at Star City. •
Agnes O'Casey as
Irina Morozova, a recent addition to the surveillance department at Star City. The character was portrayed by
Svetlana Efremova in
For All Mankind. •
Adam Nagaitis as Valya Markelova, a highly respected cosmonaut within the Soviet space program. •
Alice Englert as
Anastasia Belikova, an untested female cosmonaut in the Soviet space program. The character was portrayed by Rita Khrabrovitsky in
For All Mankind. •
Josef Davies as
Sergei Nikulov, a young, brilliant engineer who works at Soviet Ground Control. The character was portrayed by
Piotr Adamczyk in
For All Mankind. •
Ruby Ashbourne Serkis as Tanya Markelova, a cosmonaut’s wife who struggles within the confined world of Star City. •
Solly McLeod as Sasha Polivanov, a reckless cosmonaut who has yet to live up to his potential •
Priya Kansara as Lakshmi, a gifted scientist. • Eadie Johnson as Zoya. == Episodes ==