Guest Stars Sally Dexter as Older Mileva T.R. Knight as J. Edgar Hoover Henry Goodman as Walther Rathenau David Dencik as Niels Bohr Vincent Kartheiser as Raymond Geist Charity Wakefield as Betty Neumann Eugene Simon as Eduard Einstein Dag Malmberg as Svante Arrhenius Thomas Morris as Ernst Peter Jacobson as Chaim Weizmann Co Starring Zita Téby as Older Ilse Lucy Farrett as Older Margot Neil Edmond as Dr. Weiss Nicholas Richardson as Cop Matthew Burt as Reporter 1 Petra Buckova as Osip's Mum Michael Pitthan as Rudolf Randall Scott Williams as Crowd Voice 2 Laura Strugar as Crowd Voice 1 Nicole J. Adelman as Crowd Voice 3 Victor Dohlsten as Male Assistant Mark Lisseman as Hitler Charlotte Puder as Nazi Secretary Sebastian Müller-Stahl as Nazi Official Adam Vacula as Dmitri Jake Samuels as Reporter 2 Георгий Стрелянный as Osip Amy Huck as Eleanor Sam Douglas as Attorney General Palmer Ted Otis as Reporter 3 Scott Sparrow as Police