Evilspeak

Stanley Coopersmith

Sarge

Reverend Jameson (as Joseph Cortese)

Coach

Kowalski

Bubba

Colonel Kincaid

Hauptman

Jo Jo

Ox

Miss Friedemeyer

Charlie Boy

Jake

Tony

Captain Merrill

Susie Baker

Father Esteban

Old Priest

Mrs. Caldwell

Teacher

Teacher

Peasant Girl

Attendant

Janitor

Girl Student

Cadet

The title "Evilspeak" was derived from the phrase "computer-speak", a term used to describe the shorthand used by computer specialists for the otherwise complex. In the film the protagonist uses computers to summon evil spirits.

Actor R.G. Armstrong was offered a choice between playing "Sarge" and Colonel Kincaid before assuming the role of Sarge.

One of the prosthetic heads was accidentally made too tough for the decapitation scene it was intended for, and when Clint Howard struck it with the sword to his embarrassment it merely bounced off. Frustrated, he found a large sledge hammer then took some time to practice swinging it around until the added weight made wielding the sword seem easy by comparison, and when the scene was shot again he finally took the head off.

Obvious dummies in a number of gore scenes, the dummies' bodies and body parts are often different colors and sizes than the actors' real bodies. Most obvious is the dummy used in the opening decapitation scene. The actress's breasts change size and her nipple and skin color changes before she is beheaded.

In the first shower sequence one of the actors can be seen wearing a jockstrap.

In the dungeon scene with the preserved fetus rising up in its jar, you can obviously see the lines attached to the fetus' hands and head.

Father Esteban: I will return.

Stanley Coopersmith: Maybe you're right. Maybe this puppy is better off not making it. It's a tough world out there. You got to be able to kick and scratch if you want to survive. I found that out right after my parents died. From what I can tell, like these other pups, it's the ones that can do the most pushing and shoving that get the biggest piece of the pie.

Stanley Coopersmith: I command you, Prince of Evil, heed my call. Give life to the instruments of my retribution.