Most of the Nazi thugs are played by fans who paid to have a role in the movie.
David DeCoteau, who directed four of the Puppet Master movies (Toulon's Revenge, Curse, Retro & Axis of Evil) has a cameo in this movie, he plays one of the Nazi thugs.
Some of the scenes where the puppets are walking are done with actors in puppet costumes on a green screen.
Charles Band has said this is the bloodiest sequel in the entire series.
This is the first time Jester will have his surprised expression since Puppet Master 5.