Season four of For All Mankind picked up eight years after the events of season three, with Happy Valley rapidly expanding its footprint on Mars by turning former enemies into partners.
In 2003, the space program focused on capturing and mining highly valuable, mineral-rich asteroids that could change the future of both Earth and Mars. But simmering tensions among the residents of the now-expanding international base threaten to undo everything they worked toward.
Ronin (pictured) plays Lenya, a Soviet politician and former cosmonaut. He joins Mireille Enos and returning actors Joel Kinnaman, Wrenn Schmidt, Krys Marshall, Edi Gathegi, Cynthy Wu, Coral Peña, Toby Kebbell, Tyner Rushing, Daniel Stern and Svetlana Efremova.
Produced by Sony Pictures Television, For All Mankind was created by Ronald D. Moore, Matt Wolpert and Ben Nedivi. Wolpert and Nedivi serve as showrunners for season five and produce alongside Tall Ship Productions' Moore and Maril Davis, as well as David Weddle, Bradley Thompson, Seth Edelstein and Kira Snyder.
Born and raised in the Soviet Union, Ronin is probably best known for his roles on FX's The Americans and Showtime's Homeland. He appeared in the Netflix series Obliterated last year and also has the film Once Upon a Time In Hollywood and the NBC series The Endgame to his name.