Director Marco Berger has a very brief, uncredited, cameo as one of the actors on the fake television show, "Blind", which the two lead characters watch together in the early part of this film.
As of May 2012, there are at least twenty-two titles (films or television) with "Plan B" as the title (twenty-three if "The Back Up" Plan is counted, due to it being released as "Plan B" in some countries) with at least one more title now in production.
None of the characters has a last name.
This was Marco Berger's second collaboration with actors Manuel Vignau and Lucas Ferraro. The two had previously starred in Berger's first short 'Una última voluntad (2008)'.