Complete Monster: Doctor Praetorius is the only human bad guy (unless you count that thrift store clerk), and clearly derives waaay too much pleasure from cutting people up and using their organs for various disgusting purposes (like nunchucks).
They Just Didn't Care - Any particular reason why the Mexican wrestler doesn't even attempt to fake an accent? Even when saying Spanish words? Also see You Don't Look Like You.
The stulted, strange-rhythmed English is meant to mock dubbed-in dialog in foreign movies, the idea being that people in Chop Sockey movies and Mexican vampire movies speak like dubbed-in voice-over artists, not themselves.