Cast
- Gustav Knuth as Walter Zügel, Caissonarbeiter
- Viktoria von Ballasko as Else, seine Frau
- Josef Sieber as Richard „Jolly“ Gauter, Caissonarbeiter
- Carl Kuhlmann as Hans Riemann, Caissonarbeiter
- Hermann Speelmans as Peter Klune
- Heinz Welzel as Werner Handrup
- Lina Carstens as seine Mutter
- Gisela Uhlen as Erika Bartels, seine Freundin
- Eduard Wenck as ihr Vater
- Annemarie Holtz as ihre Mutter