

Template:Interlanguage link as Julian De Vos, a courier funneling information from "Thomas Shaw" to Claudia Gartner.Template:Interlanguage link as Hans Richter, an old-world spy who has risen to the highest ranks of the BfV.Caroline Goodall as Kelly Frost, Steven's wife.Template:Interlanguage link as Jemma Moore, Steven's superior at the CIA.Mark Moses as Jason Wolfe, Berlin Station's supervisor at the CIA (seasons 1 and 3).Mina Tander as Esther Krug, a German BfV agent and later the head of the BfV.Ismael Cruz Córdova as Rafael Torres (season 3), an officer for the Special Activities Center of the CIA, previously in the military.Ashley Judd as BB Yates (season 2, recurring season 3), Berlin's new Chief of Station, nicknamed "The Station Whisperer".Keke Palmer as April Lewis (seasons 2–3), the new young case officer assigned to Berlin Station.John Doman as Richard Hanes (season 2), the new American ambassador to Germany and an old friend of Steven's.Tamlyn Tomita as Sandra Abe (season 1), a quiet presence leading the efficient operation of Berlin Station while having an affair with her boss, Steven.Richard Jenkins as Steven Frost (seasons 1–2, guest season 3), a veteran of the Cold War, who serves as the CIA's Chief of the Berlin Station in season 1 and is retired at the start of season 2.Michelle Forbes as Valerie Edwards, the no-nonsense administrator who serves as a Berlin Station Internal Branch Chief, and later Station Chief.Leland Orser as Robert Kirsch, a devoted and successful Deputy Chief who digs intelligence out of the city of Berlin through a mix of force, diligence, and cleverness.Rhys Ifans as Hector DeJean, a disillusioned veteran CIA officer with dubious tactics and many secrets.Richard Armitage as Daniel Miller, a cerebral CIA officer who shifts from working as an analyst at Langley headquarters in the USA to serving as an undercover officer in Berlin and is tasked with finding a leak in CIA operations.In season 2, four months after Miller was shot at the end of season 1, he recovered from his injuries sufficiently to be given a new clandestine assignment: to infiltrate a far-right German political party believed to be planning an act of terror right before an upcoming election.

Guided by veteran Hector DeJean ( Rhys Ifans), Daniel learns to contend with the rough-and-tumble world of the field agent: agent-running, deception, and the dangers and moral compromises. In season 1, Miller has a clandestine mission: to uncover the source of a leak who has supplied information to a now-famous whistleblower named Thomas Shaw. The story follows Daniel Miller ( Richard Armitage), who has just arrived at the CIA station in Berlin, Germany.
