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 Silvina Buchbauer as Katharina Lenard Joshua Akehurst as Hans Albert Einstein (Age 15) Lochlainn O'Mearáin as Georg Nikolai Jack Fox as Dr. Paul Weyland Adrian Edmondson as David Hilbert Co Starring Caspar Griffiths as Eduard Einstein (Age 4) Edan Hayhurst as Hans Albert Einstein (Age 10) Daniel Brown as British Photographer Tim Woodward as Magistrate Konig Logan Hillier as Reporter 1 William Valerián as Prussian Academy Assistant Eric Carte as Sir William Crookes Edward Harrison as Arthur Eddington Václav Jiřaček as German Photographer Paul Gilmore as General Lehning Steve Windolf as Carl Bosch Joe Weintraub as Reporter 2 Jiri Roskot as Dying French Soldier Marc Cram as Executive Hugh Robb as Eduard Einstein (Age 9) Zuzana Stivínová as General's Wife Lukás Král as Scientist Johannes Rhomberg as Swiss Soldier Samuel Hummel as German Soldier
