A celebrated National Theatre actress and Blacky's mistress. She works for a German-assigned labour brigade, inspires the German officer Franz, and is involved in a forced wedding incident. After helping Marko kill Franz, she becomes his partner. She witnesses the underground deception, reappears in 1992 to save Marko, and is captured alongside him.
Their wartime connection develops into a long-term romantic partnership.
The plot states that Marko and Natalija are a couple after the Easter 1944 events.
Franz's attraction and Natalija's shifting loyalties create a volatile emotional bond.
Franz becomes infatuated with Natalija, demands her release during the boat standoff, and she runs to him before later switching sides.
Bata is Natalija's family connection during the wartime hospital sequence.
The plot identifies Bata as Natalija's brother when Franz and Natalija visit him in the hospital.
Explore the full interactive character relationship map of Underground