Scooby-Doo and the Ghoul School

Scooby-Doo and the Ghoul School is a 1988 animated made-for-television film produced by Hanna-Barbera for syndication as part of the Hanna-Barbera Superstars 10 series.

Plot
Scooby-Doo, Shaggy, and Scrappy-Doo are on their way to a Miss Grimwood's Finishing School for Girls, where they have been hired as gym teachers. Once there, however, they find that it is actually a school for girl ghouls. The pupils include Sibella, the daughter of Count Dracula; Elsa Frankenteen, the daughter of Frankenstein's monster, Winnie, the daughter of The Wolfman; Phantasma (usually called Phanty for short), the daughter of a phantom, possibly The Phantom of the Opera; and Tanis, the daughter of The Mummy - all parodies/tributes to the Universal Monsters of the 1930s-40s. Other residents of the school are a floating white hand; an octopus, who is the school's butler; Legs, a spider that helps with the upcoming volleyball match; Miss Grimwood, the headmistress; and her pet dragon Matches (who dislikes Scooby at first, but later becomes friends, and has a strong friendship with Scrappy). Shaggy and Scooby want no part of this at first, but eventually they agree to stay as teachers.

The following morning begins with the class and the new teachers taking ballet lessons. Gym class soon starts, to train the girls for their upcoming volleyball match against the boys of the neighboring Calloway Military Academy. The boys rig the volleyball with a remote control, but because of an accidental squirt of ketchup, the boys lose the remote, Scooby accidentally swallows the remote and it allows the girls to win instead.

The girls' fathers come for Open House on Halloween night, but as they leave, they warn a fearful Shaggy and Scooby not to let any harm come to their daughters or they'll be in big trouble. As an additional plot twist, Revolta, the self-styled Witch of the Web, and her minion, the Grim Creeper, plan to kidnap the girls and make them her slaves, by hypnotizing Shaggy into taking the girls on a field trip to the Barren Bog. That same day the Calloway Cadets are at the bog. With the help of Revolta's spider bats, Revolta and the Grim Creeper capture the girls and Revolta makes a potion that will make them evil forever at the stroke of midnight. Scooby, Scrappy, Shaggy, and Matches, along with the Calloway cadets manage to save the girls; and Revolta's plan is foiled.

Despite being well liked by all their students, Shaggy and Scooby have enough of this and run away when monsters such as an alien, the Creature from the Black Lagoon, and Godzilla enroll their daughters at the school for the following year screaming "Like, meet us in St. Louis". As they leave, they see the girls and Matches wave them goodbye. Shaggy, Scooby, and Scrappy then give them a last werewolf howl before driving off into the night.

Grimwood residents
A group of girls who are the offspring of famous horror monsters, who unlike them are not wholly villainous.
 * Miss Grimwood, the middle-aged headmistress of the school. She wears a red cape over a pink dress, a red headband, red shoes, and has short black hair. She has a pet dragon named Matches.
 * Matches, a small, light-green dragon who serves as Miss Grimwoods's pet guard dog. He often gets duties like heating food in the kitchen or warming up items with his fire breath in which his body will turn a dark red color. However, he is not able to breathe fire when his body is wet. Matches often shows a bad temper. At first, he shows a strong dislike towards Scooby—a recurring gag throughout the film is that Scooby would make Matches angry and get his tail set on fire as punishment. Matches later warms up to Scooby after the dog saves him from the Grim Creeper and helps rescue the girls from Revolta.
 * Sibella, Count Dracula's pre-teen daughter. She has green eyes, light purple skin, purple hair, red shoes, and a dark purple dress with a red belt. Sibella can turn into a bat at will, which she uses for a variety of different reasons such as rescuing or looking for people, or for simple things such as delivering a pizza. Unlike traditional vampires like her father, she is immune to sunlight and can go out during the day. She is also shown to be the most strongly willed of the five Grimwood girls—she is the last to undergo Revolta's hypnosis spell and tries to fight back. She often uses phrases with vampire-related puns such as "fangtastic" and "You bat" (you bet). She is talented at making bat-robes (bathrobes) and dragon fire-proof robes as seen when she gives her father and Matches each one.
 * Elsa Frankenteen, the daughter of Frankenstein's monster. Elsa has platform-like brown sandals and a green dress with a light green T-shirt underneath. She can endure electric shocks and her black hair is standing up above her head thus resembling the Bride of Frankenstein. She presents her father with a portable shockman that has a rechargeable battery-pack that lasts for weeks, showing that her father can also endure electric shocks. She is the tallest and the strongest of the girls. She has a deeper voice which is more masculine-sounding than the other four girl ghouls.
 * Winnie, the Wolfman's daughter. Quite often Winnie howls before making a statement, and unlike common stereotypical werewolves, she does not turn back into a human during daylight hours. She wears a blue dress, a light blue bow-tie and has light brown fur and orange, curly hair. Winnie makes a juicer as her father's Halloween gift, which makes bitter lemonade, something her father enjoys. Out of the rest of the girls, she is the most talkative and can also be very loud and somewhat competitive.
 * Phantasma, a phantom's daughter. Everyone calls her "Phanty" for short. With a shrill, high laugh, she has short white hair with a blue streak and pale blue skin. She wears a blue dress and white boots. Being intangible, she can float through walls and doors. She has a good sense of humor and is musically gifted, also displaying a great love and appreciation for music. Phanty's gift to her father is her latest composition which was called "Duet For Three Hands and Six Tentacles".
 * Tanis - The Mummy's daughter, Tanis is the smallest and youngest of the girls. She has big, blue eyes and a bandage ponytail embellished with a dark pink bow. She usually gets tangled in her bandages and the others have to untangle her and re-wrap her. She calls her daddy "Mummy Daddy." Tanis has an Egyptian trophy case in which to store trophies, but she often gets worried when it looks like they are going to lose a game. Tanis gave her father a fright-light to brighten the darkest mummy case for a present. She is a shy sweetheart, and is the most nervous out of the group of girls. Even Scooby warms up to her immediately, mostly because of her innocence. She often sucks on her thumb to show her innocence.

In the final scene of the film, the daughters of an alien, the Creature from the Black Lagoon, and Godzilla come to attend but Shaggy, Scooby and Scrappy drive off before we get to know them.

Calloway cadets
A group of boys of Colonel Calloway's Military School, located next to Grimwood. They often use the terms "affirmative" or "negative" when agreeing or disagreeing with particular happenings.
 * Colonel Calloway, the head of Calloway Military School. Fair yet very stern, Calloway seems to have a reciprocated attraction to Miss Grimwood.
 * Tug Roper, the leader of the cadets. He often tries to maintain his dignity and even resorts to cheating during the volleyball game against the Grimwood Girls, but he and his team still lose. He does what he can to impress the colonel, but often disappoints him with his clumsiness.
 * Miguel, the inventor of the group, most of the time his inventions are messed up by the others.
 * Jamal Williams, the tallest and most skilled of the cadets, despite not being the leader, Col. Calloway seems to admire him more than Roper; he always answers to every positive sentence with "affirmative".
 * Grunt, the largest member of the cadets; despite being overweight, he is very athletic and very strong.
 * Baxter, the smallest member of the group. He seems to be the most obedient of the cadets; following the colonel's every word and acknowledging him at almost every time.

Villains

 * Revolta - The Witch of the Web. She plans to make the students at the ghoul school part of her evil squad permanently. Her main magic is mind control via spider bats who put web-like hypnosis headphones on the victim and Revolta issues commands through that headphone which hypnotizes the victims. She is also a good potions maker and can brew potions that make others evil permanently.
 * Grim Creeper - Revolta's assistant. He looks like a green, overgrown pumpkin with long vines for limbs and one eye in the middle of his head. He unsuccessfully tried to get the wand from Revolta when Matches came near him.
 * Mirror Monster - A monster who lives in one of Revolta's mirrors and can change into anyone that looks into it. In the movie, the monster traps Shaggy inside the mirror and replaces him. He chases after Scooby, who eventually fools him into thinking he is one of Revolta's slaves. In the end, Matches burns his backside, and he jumps back into the mirror, setting Shaggy free.

Voice cast

 * Don Messick as Scooby-Doo / Scrappy-Doo
 * Casey Kasem as Shaggy / Mirror Monster
 * Remy Auberjonois as Baxter
 * Susan Blu as Sibella Dracula
 * Hamilton Camp as Phantom Father
 * Jeff B. Cohen as Grunt
 * Glynis Johns as Ms. Grimwood
 * Zale Kessler as Count Dracula / Frankenstein Senior
 * Ruta Lee as Revolta
 * Aaron Lohr as Miguel
 * Patty Maloney as Tanis
 * Scott Menville as Tug
 * Pat Musick as Elsa Frankenteen
 * Bumper Robinson as Jamal
 * Ronnie Schell as Colonel Calloway
 * Marilyn Schreffler as Winnie
 * Andre Stojka as The Grim Creeper / Mummy Daddy
 * Russi Taylor as Phantasma
 * Frank Welker as Matches / Papa Werewolf / Well Dweller

Home media releases
Scooby Doo and the Ghoul School was first released on VHS by Hanna-Barbera Home Video in 1989, but later it was released by Warner Home Video in 2001.

Warner Home Video released Scooby-Doo and the Ghoul School on DVD in Region 1 on June 4, 2002. The film has also been released on DVD in Region 2.

Legacy
A follow-up film, Scooby-Doo! and the Reluctant Werewolf was released on November 13, 1988.

The five girl ghouls made a return in the OK K.O.! Let's Be Heroes episode "Monster Party", which was first released online on October 1, 2018, and is scheduled to air on October 21, 2018. Though Scooby and Shaggy do not appear, they are briefly referenced. While Taylor, Blu and Musick reprise their roles, Natalie Palamides and Kristen Li took over for Winnie and Tanis, respectively.