Guest Stars Seth Gabel as Michele Besso Sally Dexter as Older Mileva Alicia von Rittberg as Anna Winteler Henry Goodman as Walther Rathenau Lily Dodsworth-Evans as Ilse Einstein Gwendolyn Ellis as Young Elsa Einstein Zoe Telford as Clara Haber Dag Malmberg as Svante Arrhenius Joshua Akehurst as Hans Albert Einstein (Age 15) Silvina Buchbauer as Katharina Lenard Lochlainn O'Mearáin as Georg Nikolai Adrian Edmondson as David Hilbert Jack Fox as Dr. Paul Weyland Co Starring Edan Hayhurst as Hans Albert Einstein (Age 10) Caspar Griffiths as Eduard Einstein (Age 4) Logan Hillier as Reporter 1 William Valerián as Prussian Academy Assistant Daniel Brown as British Photographer Hugh Robb as Eduard Einstein (Age 9) Tim Woodward as Magistrate Konig Paul Gilmore as General Lehning Václav Jiřaček as German Photographer Steve Windolf as Carl Bosch Edward Harrison as Arthur Eddington Joe Weintraub as Reporter 2 Eric Carte as Sir William Crookes Jiri Roskot as Dying French Soldier Marc Cram as Executive Zuzana Stivínová as General's Wife Lukás Král as Scientist Johannes Rhomberg as Swiss Soldier Samuel Hummel as German Soldier
