| Sebastian Rudolph | Michael Kahnwald |
| Louis Hofmann | Jonas Kahnwald |
| Dietrich Hollinderbäumer | Adam |
| Lisa Kreuzer | Old Claudia Tiedemann |
| Christian Steyer | Old Clockmaker |
| Barbara Nüsse | Eva |
| Lisa Vicari | Martha Nielsen |
| Hans Diehl | Old Unknown |
| Jakob Diehl | Adult Unknown |
| Claude Heinrich | Young Unknown |
| Nina Kronjäger | Female Stranger |
| Julika Jenkins | Adult Claudia Tiedemann |
| Christian Pätzold | Old Egon Tiedemann |
| Oliver Masucci | Adult Ulrich Nielsen |
| Hermann Beyer | Old Helge Doppler |
| Peter Schneider | Adult Helge Doppler |
| Tom Philipp | Young Helge Doppler |
| Paul Lux | Young Bartosz Tiedemann |
| Wolfram Koch | Adult Magnus Nielsen |
| Carina Wiese | Adult Franziska Doppler |
| Arnd Klawitter | Adult Clockmaker |
| Andreas Pietschmann | Stranger |
| Deborah Kaufmann | Adult Regina Tiedemann |
| Anton Rubtsov | Benni /
Bernadette |
| Stephan Kampwirth | Adult Peter Doppler |
| Leopold Hornung | Torben Wöller |
| Maja Schöne | Adult Hannah Kahnwald |
| Merlin Rose | Marek Tannhaus |
| Svenja Jung | Sonja Tannhaus |
| Luna Arwen Krüger | Child Martha Nielsen |
| Jonas Gerzabek | Child Jonas Kahnwald
(as Jonas Emilian Gerzabek) |
| Walter Kreye | Old Tronte Nielsen
(uncredited) |
| Jördis Triebel | Katharina Nielsen
(uncredited) |