Clara Immerwahr and her husband to be Fritz Haber are both young and gifted chemists. Their struggle for acknowledgment in nationalistic Germany during World War I lead to the development and use of the first chemical weapons.
| Actor | Role |
|---|---|
 Katharina SchüttlerClara Immerwahr | Clara Immerwahr |
 Maximilian BrücknerFritz Haber | Fritz Haber |
 August ZirnerPhilipp Immerwahr | Philipp Immerwahr |
| SSteffi DvorakLotte Immerwahr | Lotte Immerwahr |
 Elisabeth OrthGroßmama Immerwahr | Großmama Immerwahr |
 Simon SchwarzOtto Sackur | Otto Sackur |
 Philipp HochmairDavid Sachs | David Sachs |
 Wolf BachofnerSiegfried Haber | Siegfried Haber |
 Peter SimonischekRektor Engler | Rektor Engler |
 Adele NeuhauserFräulein Knittel | Fräulein Knittel |
 Uwe BohmFriedrich | Friedrich |
 Lucas GregorowiczProf. Abegg | Prof. Abegg |