- The Other Darrin: In the second season, one of the Grimm Brothers is replaced by another actor. The previous actor was unavailable because he was shooting another show in Congo. They did try to make the replacement different by giving him another hair color and the passion for flying.
- Real-Life Relative: King Jozef and Saint-Lutgardis are played by real-life siblings Jan and Reinhilde Decleir.
Trivia / Kulderzipken