The runner on the show was the French Nordine Amraoui. Because Danmarks Radio's credit policy prevented him to get a runner's credit the crew instead gave him a writer's credit, although he didn't contribute any writing material. Nordine Amraoui also appears in several episodes and provides the voice of Yannick Noah the Tennis Racket.
In 2003, a second 2-disc DVD release by CMC Records A/S [dk] entitled "Casper & Mandrilaftalen 2: Fisso", compiling further material from the TV-series. The DVD also featured a new 40 minutes episode entitled "Fisso" (shot in January 2003 and exclusively available in the DVD, making it the 68th episode of the series).