The film is about four children of Spanish parents: Raimón, Fina, Isa, and Maribel. These children were born here, but their names were not listed in the Big Book of Sinterklaas. So the Head Piet says that they do not exist and that they will therefore not receive any presents.
| Actor | Role |
|---|---|
 Adrie van OorschotSinterklaas | Sinterklaas |
 Piet RömerHoofdpiet | Hoofdpiet |
 Sylvia de LeurMarretje | Marretje |
| JJohn SoerBakker Bolder | Bakker Bolder |
 John KuipersZwarte Piet | Zwarte Piet |
 Frank SandersZwarte Piet | Zwarte Piet |
 Mies BouwmanSelf | Self |