This is the third collaboration between Cillian Murphy (Dad) and Ken Watanabe (Kensuke). They previously starred together in Batman Begins (2005), as Dr. Jonathan Crane / Scarecrow and Ra's al Ghul, and Inception (2010), as Robert Michael Fischer and Mr. Saito. Both films were directed by Christopher Nolan.
Ken Watanabe and Sally Hawkins collaborate for the third time after starring together in Godzilla (2014) and Godzilla: King of the Monsters of the Monsterverse.