Daisy Ridley Trudy Ederle Kaya Marie Möller Olive Abercrombie Trudy Ederle (jung) Romy Beck Ethan Rouse Henry Ederle Junior Anton Ehrhorn Tilda Cobham-Hervey Margaret Ederle Luisa Wietzorek Kim Bodnia Henry Ederle Senior Erich Räuker Jeanette Hain Gertrude Anna Haberstroh Jeanette Hain Robert Eades Jonny Weissmuller Tobias Diakow Cat Haave Annette Kellerman Lisa May-Mitsching David Calvitto Bürgermeister Walker Michael Pan Velizar Binev Dr. Weiss Lutz Schnell Brian Caspe Reporter Johannes Berenz Roy Hill Reporter David Turba Christopher Eccleston ? Bernd Vollbrecht Stephen Graham ? Olaf Reichmann