Guest Stars Seth Gabel as Michele Besso Jon Fletcher as Marcel Grossmann Catherine McCormack as Marija Ruzic-Maric Claire Rushbrook as Pauline Einstein Helen Monks as Maja Einstein Alistair Petrie as Heinrich Weber Predrag Bjelac as Milos Maric Robert Lindsay as Hermann Einstein Simon Kunz as Friedrich Haller Silvina Buchbauer as Katharina Lenard Adrian Lukis as Wilhelm Röntgen Alexander Vlahos as Maurice Solovine Tom Brittney as Conrad Habicht Lynsey Beauchamp as Anna Röntgen Co Starring Tim Dutton as Headmaster Loncar Brendan Douglas as Inn Proprietor Thomas Padden as Walther Nernst Terrence Hardiman as Professor Griesel Joachim Bird as Timo Ebersold Peter Hamilton Dyer as Frederic Ebersold Emily Laing as Helene Savic Sue Maund as Frau Schnellham Alena Stréblová as Innkeeper's Wife Radoje Cupic as Priest Martin Moravec as Telegram Boy