This is the first chapter in the franchise to not feature the character of Gerben Zonderland. Nop de Graaf passed away shortly after the premiere of Kameleon en het Watermonster (2022) and was thereby not replaced out of respect.
During casting for 'Kees Dijkstra' in Kameleon en het Watermonster (2022), Clint Groenewegen lost to Sem Van der Horst. However, Van der Horst was unavailable to reprise the role in this short movie due to his obligations in De Tatta's 2 (2023), resulting in Groenewegen taking over the part.
Arjen Rooseboom and Kim Dekker had a relationship at the time and the intention was for Rooseboom to eventually play the role of Gerben Zonderland in future projects (Dekkers character Chantel Loots is the wife of Gerben in the books about the Kameleon) so that they could be a love pair on screen and stage as well. Unfortunately, the relationship ended before any of this was realized.
Sens Gerritsen and Imme Gerritsen both have very short hair in this. A few months prior to filming, they shave their heads to show compassion with a friend who was battling cancer (and fully recovered).
Despite the story taking place during summer time, it was actually filmed during winter season with temperatures below zero degrees.