
Kasper, a character in the movie, is modeled after Steffen Baadsgaard Andersen, who was part of the 2008 heist and contributed significantly to the creation of The Quiet Ones, according to director Frederik Louis Hviid. Andersen caught Hviid’s eye when he read the book Røver by Peter Sloth, which delves into Andersen’s lengthy criminal past and details his role in the heist. Eventually, Andersen agreed to collaborate with Hviid on the film and share his experiences. An interesting parallel can be drawn here – a similar approach was used in the French heist film Le Trou (1960), where real-life criminal Roland Barbat, known as Jean Keraudy, was cast in the movie and also served as a consultant for the production.