The boy who found the Plaaggeest's costume is played by Daniël van Toor, while the cashier girl is played by Liesbeth van Toor. Daniël is the son of Aad van Toor and Liesbeth the daughter of Bas van Toor.
Actor Paul Meyer would return in the next series as the thieves' boss. While playing the role of the circus director, his health was so poor that after shooting a scene in which he climbed down a small staircase, he had to take an extensive rest.