The scene when Cosima and Delphine upload the data to take down Neolution was semi-unscripted. While it was supposed to be a bittersweet scene, Tatiana Maslany really did burst into tears. The sympathetic reaction from Evelyne Brochu was genuine.
Maria Doyle Kennedy (Siobhan Sadler) and James Frain (Ferdinand Chevalier) have previously worked together in the TV show The Tudors (2007). They played Queen Catherine of Aragon and Thomas Cromwell, respectively.