Several actresses became pregnant and/or had children during the almost three years long production, including Anna Walman (who is literally reborn in the film), Anna Nilsson (whose character get pregnant) and Jenny Bäck (who plays the pregnancy doctor).
Andreas Samuelson and Fredrik Adolvsson, who plays Weirdo with the Beardo, are both writers for Swedish film site MovieZine. The site's editor Alexander Dunerfors has a cameo as a reporter.
Several crew members have cameos including FAD Rebecka Cutic (the happy victim), composer Mattias Inghe (sleepy reporter outside police station), digital compositor Emelie Nilsson (smoker with pink hair outside party). Sound editor Mattias Reshagen is the homeless guy in the President's photo but also provided the third hand giving Rob a shave in the kitchen.
Several characters are named after vintage horror film actors: Margaret Sheridan (The Thing from Another World), Catherine Lacey (The Mummy's Shroud), Barboura Morris (A Bucket of Blood), Judy Geeson (Inseminoid), Robert Cornthwaite (The Thing from Another World) and John Agar (Revenge of the Creature).
Amir Razaz: Reeves/Zebraman actor Erik Nilsson's fiance, as the bicycle victim. They got married during post-production.