Bram Römer, who plays a young De Cock in several flashback scenes, is the great-grandson of 'Piet Römer'.
In this two-part episode, Francesca Vanthielen guest-stars. In turn, Victor Reinier, who is a main cast member in Baantjer, guest-starred in a two-part episode of Aspe (2004), in which Francesca Vanthielen is a main cast member.