Character mistake: Bosley and the Angels are in the office and they discuss about the case they have just solved. Bosley calls Charlie "Charles", which despite being correct is definitely odd. Nobody has ever called Charlie by his given name.
Character mistake: Sabrina, Kris and Bosley are discussing a girl who has just died. Her name is Annette, as it has been repeated several times. However, in one line, Bosley says "Angela's mother", rather than "Annette's mother".
During the scene in the Sheriff's car, after the Angels choke the Sheriff and Deputy, they lose control of the car. It goes off the road and a ramp is seen, hidden by some trees, that the car goes off to end up in the swamp.