Diana becomes Chanteraide’s romantic partner after he begins researching the unidentified submarine. Their relationship provides him with personal support amid the escalating military crisis, and the film ends with Chanteraide reuniting with her after he survives the submarine disaster and loses his hearing.
Nadja is a doctoral candidate in literature who is staying at the holiday house and is initially mistaken by Leon for a seasonal hotel employee. Kind and perceptive, she befriends Felix and Devid, honestly critiques Leon's manuscript, saves Helmut during the fire, and later confronts Leon's self-centeredness while sharing his grief.
A depressed music student who survives a fatal car accident and temporarily stays with Betty's family for recovery. She finds refuge and artistic inspiration but ultimately rejects Betty's projection of her deceased daughter, later achieving professional success and emotional closure.
Fashion design student and Kurt's wife. Daughter of Professor Seeband, she endures an unauthorized abortion orchestrated by her father, struggles with infertility, and eventually becomes pregnant. Her life and pregnancy inspire a pivotal nude painting by Kurt.
Protagonist, a talented Jewish jazz singer in 1940 Berlin who survives by passing as non-Jewish until her capture forces her to become a Gestapo informant to save her parents, later facing post-war trial.
Undine is a historian who lectures on Berlin’s urban development and the central figure of the story. After Johannes ends their affair, she begins a passionate relationship with Christoph, but her unresolved attachment leads to conflict, Johannes’s drowning, and her disappearance into the water before she later reappears to Christoph.
The estranged wife of the dead writer, waiting in Marseille because she believes he is still alive and hopes to reunite with him. She is also Richard's mistress, receives a transit visa through Georg, and develops a romantic relationship with Georg before attempting to leave on the Montreal.
Anna is a young German woman mourning her fiancé, Frantz Hoffmeister. She welcomes Adrien into Frantz’s family circle, protects the Hoffmeisters from the truth about his death, survives a suicide attempt, and travels to Paris to forgive Adrien before choosing an independent life inspired by Frantz’s final letter.
Luzi is the daughter of Mrs. Gader and becomes closely connected with Greider after accompanying him into town. She is later married to Lukas and abducted by the Brenner family, prompting Greider to rescue her and challenge the brothers. Her relationship with Greider and Lukas places her at the center of the final conflict.
Journalist and colleague, supports investigative reporting efforts
Rosmarie is Harriet's daughter and Iris's cousin. As a teenager, she grows close to Inga and belongs to the childhood circle that also includes Iris and Mira. Her death after a night near a tree remains unresolved: Iris wonders whether Mira let go of her, whether it was an accident, and why she herself pretended to be asleep.
Paula Beer has 26 screen credits in a career dating back to 2010. Their work is anchored in the Tödliche Geheimnisse Filmreihe universe with 2 titles. Signature works include Bad Banks, Miroirs No. 3, Afire. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
