Thatch's toothache may send him to a human dentist.
Casper's attempts to help Mantha win a scaring competition backfire.
Mantha replaces her arm with a tentacle that seems to be causing trouble at school. Meanwhile the boys keep finding vandalism at night and suspect it to be caused by Mantha.
Casper makes a creature out of cafeteria leftovers, but the beast proves difficult to control.
Casper forms a secret squad to end bullying at school.
Casper helps Ra seem more athletic, but his kindness could lead to trouble after Ra is challenged to complete a dangerous task.
Casper tries to protect a bunny that frightens Alder and Dash.
The kids undergo scariness testing.
Casper's uncles give him scaring tips that end up working too well.
Ra gains popularity after kids at the school find out he's rich. Thatch, Alder, and Dash try to claim Ra's riches.
Casper goes to a medieval-themed restaurant with Professor Burns, who's seeking revenge against the knights there.
A botched experiment changes the students' personalities, such as the mean people as nice people.
Casper joins a scout troop but is dismayed by their mission to scare people.
Thatch is stuck at a Halloween party in Deedstown.
Ra and Mantha encourage an overwhelmed Casper to be less helpful, but it could affect Jimmy's magic show.
A bully gets magic shrinking dust, putting the whole town in peril.
A battle of the bands divides Casper, Mantha and Ra.
Kibosh pressures Casper to run for Class Representative, but Casper doesn't want to betray Mantha, who's also running.
Ra sneaks away on a camping trip and ends up lost in the woods with Casper and Mantha.
Norman takes Casper's ghostly form and causes trouble. While the whole thing is happening, Alder & Dash use this as a way to avoid punishment from Kibosh.
Casper is supposed to spread bad cheer in Deedstown, but he really wants to spend time with Jimmy during Christmas.
The students overuse a clock that stops time until it breaks and everyone is stuck in time.
Casper and friends haunt Jimmy's house in an effort to stop the Bradley family from moving.
Ra takes Harpy to the school dance, where Ra plans to be named king. However as Thatch heard about the award of the dance, he is determined to become king.
Wolfie turns into a human, much to his horror, and could be expelled from Scare School.
Mosshead proves to be an annoying houseguest.
Paramedic Paranormal: Jimmy goes to the hospital to treat his hives, but Casper's friends distract the staff, leaving Jimmy neglected. Back To Ghoul: Casper's uncles return to Scare School and land Casper in hot water as a result of their constant pranks.
Casper's uncles return to Scare School and land Casper in hot water as a result of their constant pranks.
Feeling neglected on his birthday, Ra goes to the museum to visit his mummy friends. The trip turns perilous when the exhibit is packed up for a new location.
Copies of Cappy's treasure map flood the school, leading to an all-out treasure hunt.
Ra thinks he's becoming a vampire after he bites Thatch's sandwich.
Casper hides Jimmy in Scare School to protect him from Norman, but he may have to guard Jimmy from the students as well.
Ra gets a fancy new sarcophagus, a hi-tech device that's difficult to control.
Ra uses the Answertorium for a test, but his new genius status puts Wolfie in peril.
Ra gets stuck in the Dimension Tube, which Casper tries to fix before Ra is gone forever.
The kids raise gloutches for a school project. Casper and Thatch have problems raising their gloutches as these have the opposite of their personalities.
Casper takes over Quasi's job as punishment for persuading him to go on strike.
Casper becomes Cappy's first mate but has trouble adjusting to life on the sea.
A monster is loose in the school, stealing the powers of all the teachers and students with the help of a magic crystal. When the students succeed in capturing the creature, it turns out this was all a test by Kibosh.
But when he wants to return the powers to the students, his friend, a Leprechaun named Razznik, steals the crystal.
Razznik has taken the powers of all students, except Casper. The students and teachers of the Scare School all flee to Deedstown.
Casper enlists the help of Jimmy and his dad to get the crystal back.
A ghost stole an artwork from Deedstown Gallery. It turn out a man inside a white sheet.
When Professor Thurdigree Burns come down with the dragon flu, Casper, Mantha and Ra are tasked with finding a cure.
Jimmy's dad thought that Casper, Ra and Mantha as "evil" creatures, so he went to the Underworld.
The students and staff divided into teams against each other in the game of Slugby (a parody sport of rugby)
Mantha thought that the actors of the director's recent movie were real zombies, so she lead an army that zombies are like everyone else, turned out that it was a bad idea.
Mantha has crypt critters (parody pest of lice), so Casper has to find a solution to put end of Mantha's itchiness.
Flyboy's dad replaces Professor Thurdegree Burns as a Science teacher and wants Flyboy to turn back into fleshies/humans together.
After Alder & Dash punished the students and got fired by Kibosh, due to the students' revenge, a new headmaster approached and nobody wants to follow him.
Three little dragons in the Forbidden Forest have drunk a vial of a potion that Casper has created in science class. They become spellbound, and create a huge panic at school.
The Scare School students are getting ready to stage a play, but there's a problem: Dummy Girl has disappeared! It's Woodward, the figurehead on Cappy's pirateship, who must replace her urgently.
Casper and Blodge get caught after using Alder @ Dash's office microphone to make funny announcements to the whole school. But Blodge disappears before he can do the task he was given as punishment.
Once again Jimmy is being bullied by his schoolmate Norman. Jimmy has had enough, and with Casper's help, he manages to take Norman to the uncles' manor to give him a good scare.
A magic lantern found by Casper in his uncles' manor, turns Jimmy into a ghost! At last he can do everything Casper does! Jimmy seems to enjoy his new powers a bit too much, which ends up putting Casper in a tricky situation.
While visiting Cappy, Casper learns that Woodward, has disappeared while the Gallion was going through a storm in Deedstown. Casper and Jimmy go looking for him throughout the city, but will they find him and bring him back?
The Bedroom scare competition is about to begin, and each little monster is assigned a different house. Everything is going fine, except for Casper who ends up in a home where one little kid is simply afraid of NOTHING!
In CASPER'S SCARE SCHOOL, Casper has a new assignment: get in touch with his spooky side and start scaring "fleshies" OR ELSE! It's a tough enough challenge for the world's friendliest ghost. But when he goes to Scare School to learn his craft, he uncovers a plot by Alder and Dash, the cruel, two-headed headmaster, to take over the world. With only himself and his misfit pals Ra, a mummy with "unraveling issues," and Mantha, a zombie who can't keep her limbs on, the odds are stacked against him. But what Alder and Dash don't realize is that the power of friendliness is greater than any evil plot, and when friends work together nothing can stop them.
Kibosh, supreme ruler of all ghosts, decrees that casper must scare at least one person before Christmas Day so Casper visits Kriss, Massachusetts where he meets the Jollimore family and sets out to complete his mission. As usual, kindhearted Casper has a ghastky time trying to scare anyone; so The Ghostly Trio, fed up with his goody-boo-shoes behavior, secretly hires Casper's look-alike cousin Spooky to do the job-with hilarious results.
