Klaus Detlef Sierck was a German child actor. He was the son of the theatre and film director Hans Detlef Sierck and the theatre actress Lydia Brincken. After his parents separated in 1928, Sierck grew up with his mother and was distanced from his father during the Nazi period after the latter married actress Hilde Jary, who was Jewish.
Read full Wikipedia article ↗Filmography7 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 1942 | The Great KingMovie | Prince Heinrich (younger) | 17 |
| 1941 | CadetsMovie | Kadett Hohenhausen | 16 |
| 1941 | Kopf hoch, Johannes!Movie | Johannes von Redel | 16 |
| 1940 | Aus erster EheMovie | Thomas Helmerding | 15 |
| 1939 | Streit um den Knaben JoMovie | Erwin | 14 |
| 1938 | Covered TracksMovie | Page Armand | 13 |
| 1938 | Shadows over St. PauliMovie | Hummel | 13 |