Question: the man who knew infinity jeremy northam?
Answer: Dev Patel as Srinivasa Ramanujan., Jeremy Irons as G. H. Hardy., Devika Bhise as Janaki., Toby Jones as John Edensor Littlewood., Stephen Fry as Sir Francis Spring., Jeremy Northam as Bertrand Russell., Kevin McNally as Major MacMahon., Enzo Cilenti as Doctor.