Season 1: Poor Jana. No matter what time she's introduced — 1986 Jana (Anne Lebinsky) or 2019 Jana (Tatja Seibt) — she's never all there, so to speak. Ulrich's mother just could not bounce back after the tragic kidnapping of her youngest son, Mads.
Season 2: While much of season 2 focuses on her husband Egon, Jana doesn't appear in season 2.