Scoobynatural is the sixteenth episode of the thirteenth season of the live-action CW series Supernatural, which aired in March 2018. It features the main characters of Supernatural going into the world of Scooby-Doo, specifically the Scooby-Doo, Where Are You! episode A Night of Fright is No Delight.
After a haunted television set transports the Winchester Brothers into the animated world of Scooby-Doo, they join forces with the Scooby Gang to solve a ghostly mystery, one that is very real and life-threatening.
At a pawn shop, Dean Winchester battles a giant stuffed dinosaur which has come to life and gone on a rampage. Finally, as Sam pins the dinosaur down, Dean douses it in holy oil and sets it on fire, causing the dinosaur to violently explode. In the aftermath, the shop owner Alan is relieved that the threat is over and dismisses the mess since they saved his life from "an evil plushie."
The three men are joined by Jay who heard the commotion. After the Winchesters quickly try to cover up the events, Alan identifies Jay as "the big man around here" who owns pretty much the whole neighborhood. The Winchesters are confused by the attack since they had come to town to investigate reports of a giant lizard and tracked it back to the pawn shop. However, they didn't expect a giant, evil plushie and are unsure what it was since the dinosaur didn't act like a cursed object. The brothers decide to investigate further, but Alan offers to give them anything they want in thanks for saving his life. Against Sam's wishes, Dean takes a giant flat screen TV.
At the Men of Letters bunker, Sam researches, but can't find anything about cursed objects that physically attacks people. Dean dismisses the threat as being over and leads Sam to a bedroom he has transformed into a man cave. Sam is surprised that Dean has had time to transform the room so much and Dean decides to test out his new TV. However, when Dean turns on the TV, the screen becomes weird and purple electrical energy sparks around the TV. Suddenly, a beam of energy emerges from the TV and sucks the Winchesters inside.
The Winchesters appear on a roadside in an animated form and are shocked to realize that they have been transported into a cartoon. The Winchesters attempt to figure out what has happened to them, suggesting that its "an angel thing" or maybe the Trickster despite the Trickster supposedly being dead. To their further shock, they spot their car parked nearby. Dean suggests that it could be because he had the keys in his pocket, but states that "beyond weird" is their kind of thing and is unconcerned by this new development. Dean points out that they have a case and suggests that they work it "same as always" and the Winchesters drive off.
Finally, the car arrives at the Malt Shop, parking next to the Mystery Machine. Though Sam is annoyed by Dean's choice of destination, Dean suggests that they go in and try to learn what they can before the Winchesters spot the Mystery Machine. The brothers quickly realize that they are in Scooby-Doo. Entering the Malt Shop, Dean is excited to see Mystery Inc. on the dance floor and Scooby-Doo slurping a milkshake. Calling dibs on Daphne, Dean leads the way over to Mystery Inc.'s booth, calling it a dream come true. Dean explains to Sam that while growing up on the road, no matter where they went, there was a TV that he could watch Scooby-Doo on. Dean calls Mystery Inc. their role models, "except Fred, he's a dickwad." Dean points out that the Winchesters do the same thing as Mystery Inc.: they go to spooky places, they solve mysteries and they fight ghosts. Sam is unsure of the comparison since their ghosts don't wear masks and they don't have a talking dog.
Dismissing Sam's comments, Dean joins Mystery Inc. at their booth, introduces himself and Sam and asks to join them. Fred agrees and introduces everyone. Dean takes the opportunity to sit next to Daphne and kiss her hand in an attempt at flirtation. Scooby and Shaggy find Dean's comment that they are famous as ridiculous, thinking they are only famous for their eating skills. Velma explains that they are celebrating Scooby being named as the heir to an old southern colonel that Scooby saved from drowning and shows them a newspaper. Sam pulls Dean aside, annoyed that he wants to hang out with Mystery Inc. and hit on Daphne instead of find a way out of the cartoon world, pointing out that there is no actual writing on the newspaper. Though Dean acknowledges that Daphne is obviously with Fred, he feels she is settling and that their best chance is to play their part based on previous experience.
Dean recognizes that Mystery Inc. are about to find a mystery moments before Fred announces it. Dean offers his and Sam's help as mystery solvers, something that Fred accepts. To Sam's annoyance, Dean tries to imitate Shaggy and Scooby eating a giant sandwich as "road food" without success. Outside, Fred and Dean challenge each other to a race to the colonel's mansion. Dean tells Sam that he hates Fred because Fred "thinks he's so cool with his perfect hair, can-do attitude and stupid ascot." As soon as the light turns green, Fred takes off, leaving Baby in the dust to Sam's shock that their 1967 Impala got beaten by a micro-van. With an angry shout, Dean chases after the Mystery Machine. Unnoticed by anyone, a trenchcoat-wearing figure walks into the road and watches them leave.
Arriving at the mansion, Dean continues to insist to Sam that Fred must've cheated and refuses to let it go. Upon seeing the mansion, Dean realizes that the Winchesters have been transported into A Night of Fright is No Delight, an episode Dean has seen many times. In the mansion, the Winchesters sit with everyone else as Cosgood Creeps introduces himself and plays a record where Beauregard Sanders informs his heirs that they will all receive an equal share of a million dollars as long as they spend the night in the mansion which is haunted. If anyone doesn't stay the whole night, their share will go to the others.
Sam is annoyed that "some weirdo" would set such a thing up, forcing people to spend the night in a haunted mansion for a million dollars. Velma tells Sam that the house isn't really haunted and such a thing happens all the time, but Dean stops Sam from revealing that they are in a cartoon to Velma, insisting that they not tell Mystery Inc. the truth as Dean wants to keep them "pure and innocent and good." Sam suggests that they "just skip to the end" since Dean knows how everything ends, but Dean refuses and Sam recognizes that Dean just wants to spend more time with Daphne. As Cosgood leaves with a creepy laugh, Dean tells Sam that Cosgood turns out to be the bad guy to Sam's lack of surprise. As everyone heads to bed, Dean tries to get Daphne to bunk with him, but is rejected in favor of Velma, forcing Dean to bunk with Fred, Scooby, Shaggy and Sam instead.
As everyone prepares for bed, Fred reassures the terrified Scooby and Sam is surprised to see Dean wearing a sleeping robe which Dean finds comfy. Discussing the Winchesters, Velma calls Dean "all right," but is dismissive of Sam, calling him a big lug and insisting that there is no such thing as the supernatural. Daphne is surprised, telling Velma that she'd thought big lugs were Velma's type, causing Velma to blush.
That night, a glowing green ghost with chains flies through the halls of the mansion, causing the lights to flicker. As he brushes his teeth, Cousin Simple is surprised when his breath is visible and turns to find the ghost behind him armed with a knife. At the same time, as everyone else is asleep, Dean eats and tells Sam that in a few minutes they will find out that Cousin Simple is missing, Mystery Inc. will think its a ghost but it will really be Cosgood Creeps in disguise. On cue, Cousin Simple screams and the Winchesters and Mystery Inc. rush to his room. There, Daphne finds Cousin Simple's dead body with blood soaking the sheets. Dean is surprised as the dummy bodies aren't supposed to show up until later, but Sam discovers that its not a dummy: Cousin Simple really is dead with a knife sticking out of his back and surrounded by a pool of real blood.
With everyone now dressed, Fred announces that they have another mystery on their hands and leaves, angering Sam as someone is actually dead and Fred is showing little respect for that fact. Though Dean tries to use the opportunity to hit on Daphne by calling Fred a jerk, Daphne disagrees and walks off. As Mystery Inc. heads off to search for clues, Dean tells Sam that what is going on is not the way things went down in A Night of Fright is No Delight. Sam recognizes that Dean is right and is left worried by the fact that if Cousin Simple can die, so can they. Dean is more concerned that Scooby can die than them, telling Sam that he would take a bullet for Scooby.
As Velma tries to come up with an explanation for what is going on rather than there being a ghost, Shaggy spots the trenchcoat-wearing figure approaching and points him out to the others. As the man enters, he is attacked by Fred who throws a curtain on him. As Dean goes to punch the man, he is revealed to be Castiel, stopping Dean. The Winchesters introduce Castiel as a friend of theirs to Mystery Inc., weirding Castiel out a bit to meet a talking dog. In a flashback, Castiel is shown returning to the bunker with Fruit of the Tree of Life, calling out for the Winchesters while explaining his encounter with a pack of djinn that left Castiel technically married to their queen. Finding Dean's man cave, Castiel finds the TV playing Fred and Dean about to race before he is sucked in as well, dropping the bag of fruit in the process. Witnessing them race off, Castiel has been trying to catch up ever since.
Sam remembers that the purple sparks both the Winchesters and Castiel have seen is like what they saw with the killer stuffed dinosaur from the pawn shop and suggests that the two incidents are connected. Having been overheard by Velma, the Winchesters and Castiel quickly come up with a cover story for their talk about the killer stuffed dinosaur which Mystery Inc. buys. Suddenly, the lights flicker and go out while everyone's breath becomes visible. Exploring with flashlights and a lantern, the group hears screams from behind a door followed by flying blood before the ghost emerges. As Shaggy and Scooby cower in fear in Castiel's arms, Fred and the Winchesters attempt to attack the ghost without success, narrowly avoiding its attacks before the ghost disappears through a wall.
As Velma denies the existence of ghosts once again to the terrified Scooby and Shaggy, suggesting that it disappeared through a hidden door, Fred enters the room the ghost came out of, only to discover Cosgood decapitated and dismembered, hanging from the celling. Mystery Inc. leaves, causing Sam to wonder if they always just walk away from dead bodies. Looking at Cosgood's body, Dean tells Sam that the cold spots and the lights fritzing out is a sign of their kind of ghost and Dean states that he believes the cartoon to be haunted. Though Fred wants to split up and search for clues, the Winchesters and Castiel think its a bad idea as it will make it harder for them to protect Mystery Inc. With Mystery Inc. insisting on searching the house despite the danger they could be in from a real ghost, Dean decides that they will have to team up with them to keep Mystery Inc. safe. Dean immediately calls teaming up with Daphne, only to have Fred join him. Velma decides to search the attic with Sam while Castiel is left to work with Shaggy and Scooby, something that Castiel is less than pleased by.
Searching the attic, Velma figures that this is Sam's first mystery and asks him to keep his "giant linebacker shoulders" from disrupting any potential clues. When asked why she keeps bringing up his shoulders, Velma can only blush and stammer. Sam tells Velma that ghosts are real along with werewolves, vampires and demons which the Winchesters hunt and that they've saved the world a lot, but Velma dismisses the idea with a laugh, telling Sam that monsters are all just crooks in masks, "usually unscrupulous real estate developers." Sam points out that there are a lot better real estate scams, but their conversation is interrupted when they find a trunk full of old toys. Though Velma notices that they are the only thing not covered in dust, Sam notes all of the ectoplasm surrounding the trunk, something that gets left behind by ghosts. The toys start glowing and attack Sam and Velma, driving them from the attic with Velma continuing to deny the existence of ghosts, attempting to come up with a rational explanation for the glowing toys.
In the library, Dean hits on Daphne again, asking what she looks for in a guy. With a look at Fred, Daphne tells Dean she looks for "strong, sincere and an ascot wouldn't hurt." Dean notices a single yellow book amongst all of the others painted into the background of the cartoon and wiggles it, thinking it might open a secret passage. Though nothing happens at first, a trapdoor opens beneath Fred, Daphne and Dean's feet, dropping them down slides to a lower room. Another attempt by Dean to hit on Daphne results in him touching the ghost in the dark, sending the three running.
Scooby, Shaggy and Castiel walk through the basement with Shaggy and Scooby complaining about the cold. Unnoticed to the three, they are being followed by the ghost. Noticing the ghost as they reach the stairs, Scooby and Shaggy take off in fright while Castiel simply comments that he's never seen a ghost who wore such a ridiculous costume before. However, when Castiel tries to touch the ghost, his arm goes through it, shocking him. Castiel is quickly dragged off by Scooby and Shaggy.
In a montage, the Winchesters, Castiel and Mystery Inc. attempt to both evade and trap the ghost while Dean continues to hit on Daphne with no luck. Finally, the group ducks into a room together where the lights go out and all of the glass fogs over, including Velma's glasses. The ghost breaks into the room, throwing Fred into a marble bust when he tries to attack and levitating Daphne and Velma into the air and pinning them to the celling with telekinesis before flinging Shaggy out the window. Finding a pair of iron candlesticks, Sam tosses one to Dean and together the Winchesters stab the ghost in the back with the candlesticks. Screaming in pain, the ghost disappears after a moment, dropping Velma and Daphne to the floor where they are caught by the Winchesters as Fred discovers that he has a bloody nose.
Hanging from a metal beam, Shaggy calls for help before falling to the horror of everyone else. Scooby jumps after Shaggy and grabs his foot, but ends up falling along with Shaggy instead of saving him. Castiel dives after the two, grabbing Scooby's tail and using his trenchcoat like a parachute to slow their fall. Castiel and Scooby land unharmed, but Shaggy breaks his left arm, shocking him as he has fallen out of a biplane before without harm. Daphne and Velma quickly create an arm brace for Shaggy while using Fred's ascot as a sling.
With the situation becoming serious, the Winchesters finally admit that the ghost isn't like the ghosts Mystery Inc. has faced before and is instead a real ghost, a Vengeful Spirit come back from the dead. Velma asks if Sam was telling her the truth about werewolves, vampires and demons and after its confirmed, she finally accepts the truth feeling stupid and blind for not having seen it before. Mystery Inc. begins having a nervous breakdown about the revelation and what it means for their lives, but Dean gives an inspiring speech using stories of their heroics and the psychos Mystery Inc. has taken down and asks for their help with taking down the ghost. Encouraged, Mystery Inc. agrees to help, but Velma points out that they don't know the first thing about fighting real ghosts or have the proper tools and weapons. In response, the Winchesters show them the arsenal in Baby's trunk and Sam tries to offer Velma a shotgun. However, Dean stops him, calling giving Mystery Inc. "a Scooby Don't." As Fred insists that they still have to do something to help, Dean agrees and tells Fred that Fred will do what he does best: build a trap.
In one of the mansion's rooms, Fred shows everyone the trap he has devised: Daphne has laid down salt lines over all the entrances but one which the ghost will be forced to enter through. At that entrance, Velma, Scooby and Shaggy have strung an iron chain that the ghost will run into when it enters which will trip an axe that will cut a rope, releasing coconuts strung above the doorway. When the coconuts fall, they will trip the ghost, sending careening down a slide of soap into a washing machine that they will secure with iron chains. With the ghost captured, they will finally be able to find out what's going on.
In order to draw the ghost out, Castiel, Scooby and Shaggy are sent out as bait with Scooby and Shaggy terrified at the idea that the ghost hasn't left. As their breath becomes visible, the ghost appears behind Castiel and looms menacingly at the three. With the ghost after them, Castiel quickly picks up Scooby and Shaggy and leads the ghost into the room, leaping over the iron chain. The ghost hits the iron chain which burns it, but when the axe cuts the rope and the coconuts fall, the coconuts simply pass right through the ghost without harming it. Instead, the coconuts trip up Castiel, sending Castiel, Scooby and Shaggy down the slide and into the washing machine, trapping them instead of the ghost.
With the ghost searching the room for them, Dean acknowledges that "Fred's traps never work" and orders Daphne to switch to Plan B: Operation Bookworm. Quickly everyone scatters out of the room in different directions and the ghost gives chase, arriving in the library where it finds Velma, Daphne and Fred hiding behind a couch. As the ghost goes after them, Scooby throws books through it, encouraged by Shaggy. The ghost approaches Scooby who hands it a stack of books before using his tail to pull the book that triggers the trapdoor Dean, Fred and Daphne earlier found. The ghost realizes what Scooby has done too late and is sent falling through the trapdoor and down the slide.
At the bottom of the slide, the ghost finds itself in a salt circle surrounded by Sam, Dean and Castiel. The salt circle imprisons the ghost who demands to be let out, banging desperately on the walls of the barrier that the salt circle creates. Dean demands to know who the ghost really is as it continues to bang on the barrier trapping it. Finally, the ghost sinks its knees and transforms into its true form: a young boy, surprising Castiel to discover that the ghost is a child.
Questioned by Sam, the ghost kid admits that he doesn't want to hurt anyone, but "the bad man" makes him. The ghost kid reveals that the bad man is named Jay and Dean realizes that he's talking about the man from the pawn shop. The kid explains that when he died, his soul was tied to a pocketknife his dad gave him that meant everything to him. Jay found the pocketknife and used the ghost for his own purposes with a flashback showing Jay putting the knife into the stuffed dinosaur and the dinosaur, now obviously possessed by the kid, attacking Dean. The kid tells the three that sometimes he gets angry and lashes out, breaking things and hurting people. The kid doesn't want to hurt anyone and just wants to see his dad again. The Winchesters and Castiel recognize that none of what happened is the kid's fault and he is a victim of Jay and his scheme. Dean promises that if the kid can get them back to the real world, they can set him free, exciting the kid.
With the situation resolved, the Winchesters and Castiel find Mystery Inc. panicking outside of the room. Deciding that they can't leave them in such a state, Dean asks the kid for a favor. When the panicked group enters the room, the ghost kid is gone, replaced by a tied up man in a costume with a mask on. The Winchesters "admit" that they were wrong and Velma was right: it wasn't a real ghost after all. On Dean's prompting, Velma unmasks the man, revealing Cosgood Creeps. Sam and Dean claim that the flying was done by wires, the walking through walls was just a projector and the dead bodies were dummies filled with corn syrup. Fred realizes that Cosgood was trying to drive everyone from the house so he could get the money for himself which Dean confirms then shows everyone that the money was all Confederate dollars and was thus worthless. Scooby takes it in stride, stating "easy come, easy go."
With the case solved, Fred decides to return to the Malt Shop to celebrate and everyone says their goodbyes. Dean makes peace with Fred and tries to hit on Daphne one last time without success. Sam "admits" that Velma was right that there is no such thing as the supernatural before Velma dips Sam into a kiss and then walks off, commenting on Sam's shoulders. While everyone is distracted, Castiel discreetly heals Shaggy's broken arm, leaving Shaggy to think that his arm wasn't broken after all. Castiel tells Scooby and Shaggy he will miss their wise words and gentle spirits and thanks the two for teaching him about the great strength of laughter in the face of danger. Because Castiel mentions danger while thanking them, Scooby and Shaggy panic and run off to Castiel's amusement.
With Mystery Inc. gone, Castiel tells "Cosgood" that they are ready. "Cosgood" transforms back into the ghost kid who transports the Winchesters and Castiel back to their world in a flash of purple light. Dean comments on how the experience was the coolest thing that's ever happened to him before leaving the room to get a blowtorch and a sledgehammer. Dean smashes his TV with the sledgehammer and locates the pocketknife in the wreckage and tosses it to Sam. As the ghost kid manifests in the bunker, Dean tells him that its time to go and Sam promises that they will deal with the bad man. Sam uses the blowtorch to melt the pocketknife, causing the ghost kid to go up in flames briefly before turning into a ball of purple light that rises towards Heaven with the Winchesters and Castiel sadly watching.
At the pawn shop, Alan has finally had enough and begins to sign papers selling his business to Jay. The two men are interrupted by the Winchesters and Castiel with Dean wearing an ascot similar to Fred's. Sam tells Alan that Jay has been driving people off their property so he can buy it cheap and has been using his own personal ghost to do it. The three explain how Jay would plant a haunted object and let the ghost go to work, possessing something like a stuffed dinosaur or Dean's TV. As a result, people would get so scared they would be desperate to sell. When Jay overheard the Winchesters talking about continuing to investigate, Jay decided to try scaring the Winchesters off with flashbacks showing Jay recovering the pocketknife from the dinosaur's remains and then slipping it into Dean's TV as they carried it past him. Castiel shows Jay the melted pocketknife and tells him that the ghost is now freed. His face falling, Jay at first tries to deny it, but then tells them that no one will believe them anyway. Sam tells Jay that they knew that, so they hacked into Jay's financial records and discovered that he doesn't pay his taxes like he's supposed to. As the police arrive, Dean comments that if it's "good enough for Capone, good enough for you."
Watching Jay be taken into custody for tax evasion, Sam admits that Velma was right in the end: it was a shady real estate developer after all. To Dean's excitement, Jay says that "I would've gotten away with it if it wasn't for those meddling kids" as he's placed into a police car. Looking into the camera, Dean goes "Scooby Dooby Doo!" as the camera closes on his face. He is then forced to explain that it's what Scooby does at the end of every mystery. However, Castiel reminds Dean that he's not a talking dog, and as Sam and Castiel walk away, Dean tries to get them to admit that he at least looks good in the ascot, but to no avail.
- Sam Winchester (single appearance)
- Dean Winchester (single appearance)
- Mystery Inc.
- Castiel (single appearance)
- Jay (single appearance)
- Cosgood Creeps (dies)
- Vengeful Spirit (single appearance)
- Ghost kid (single appearance)(redeemed)
- Alan (single appearance)
- Nephew Norble (no lines)
- Cousin Simple (dies)
- Cousin Maldahyde (no lines)
- Cousin Slicker (no lines)
- Beauregard Sanders (photograph)(deceased)
- Scrappy-Doo (no lines)(cameo)
- Ghost kid's dad (only time mentioned)
- The idea of a crossover had been around for about ten years, but it wasn't until co-writer Jeremy Adams' suggestion that it went forward. Getting an early season pick-up meant the animation could be done early. Episodes of Scooby-Doo, Where Are You! had appeared in previous episodes to the crossover.
- Since this is a Supernatural episode, the events in the animated world of Scooby-Doo are not kid-friendly.
- Before its TV debut, the episode had an early screening on March 20, 2018 during PaleyFest 2018. To capitalise on this, Hot Topic sold merchandise such as t-shirts.
- This is the first time new Scooby-Doo material has appeared on the CW since the final episode of Shaggy & Scooby-Doo Get a Clue!
- In the original episode, Colonel Sanders' cause of death was never mentioned, but here, it is revealed to be due to cancer, a tip off to Dean that the cartoon world is starting to crack.
- As is usually the case with most newspapers in a Scooby-Doo cartoon, there is no writing, which Sam points out.
- During the scene where Mystery Inc. and the Supernatural gang run between the doors, Scrappy-Doo is briefly visible.
- The episode features a montage scene with the Scooby-Doo, Where Are You! theme song, mainly the scene where both groups flee the ghost and try to board it up behind doors with no luck.
- During the episode, Fred and Shaggy both suffer actual injuries, a bloody nose in Fred's case and a broken arm in Shaggy's. This is due to the unique circumstances of the episode since, as Shaggy points out, he never gets hurt no matter what dangerous stunt he pulls. Before returning to the Supernatural world, Castiel uses his powers as an angel to heal Shaggy's injuries, making Shaggy think that he was wrong about breaking his arm.
- During the explanation scenes, both in the cartoon world and the real world, the episode features intercut moments similar to what is shown when Mystery Inc. solves a mystery and uncovers the bad guy's identity and how they did it.
- Due to the combination of real world and cartoon, the cartoon world in the episode appears to feature a combination of the physics of both. Fred and Shaggy suffer real injuries while the ghost is vulnerable to salt and iron, ghostly weaknesses from Supernatural. However, at the same time, being slapped by Dean leaves Sam with a handprint on his face briefly, which Sam shakes off with no ill effect. Later, the ghost, who had books pass through it moments before, holds the books handed to it by Scooby and is affected by the trapdoor he opens beneath the ghost's feet.
- Due to the cartoon nature of the episode, there are visual effects in many scenes that do not appear in similar scenes in Supernatural. For example, when the ghost is trapped by a salt circle, the circle creates a visible barrier similar to a forcefield. Usually the effect of a salt circle is entirely invisible. Also, when Castiel heals Shaggy's arm, a sparkling purple glow appears around the limb. Usually Castiel's healing power has no visible effect or in a few cases, a brief golden glow.
- The ghost boy is what is called a Vengeful Spirit on Supernatural. A Vengeful Spirit is the ghost of someone who is usually a good person in life, but circumstances turn them into a ghost that attacks others for some form of revenge. Generally a person becomes one if they suffer a violent death such as a murder and become twisted by their desire for revenge. In the boy's case, his anger at being used consumed him and caused him to lose control. Like with the boy, in most cases, Vengeful Spirits aren't truly responsible for their actions and often can't control what they have become. By the end of the episode, however, the ghost boy becomes more benevolent once he realizes the Winchesters want to help him and even aids in restoring the status quo of the Scooby Gang. This is because he is not innately an evil being as Vengeful Spirits tend not to be.
- After exposing Jay and setting him up to be arrested for tax evasion, Dean states "good enough for Capone, good enough for you." This is a reference to famous gangster Al Capone who was finally busted for tax evasion.
- Dean suggests that a being he calls The Trickster could be behind the Winchesters getting sucked into the cartoon world. When Sam points out that The Trickster is dead, Dean ominously asks "or is he?" This is both a reference and foreshadowing: in the past, the being the Winchesters knew as the Trickster, in reality the Archangel Gabriel, sucked them into "TV land" or a succession of TV show parodies. Though Gabriel is supposedly dead, the audience had learned a few episodes before Scoobynatural that he is actually alive. The Winchesters were unaware of this fact when they got sucked into the cartoon world.
- A second reference to The Trickster and when they got trapped in "TV land" is made in the Malt Shop: Dean reminds Sam that the last time they got trapped in a TV show, they got out by playing their part.
- Before the Winchesters got sucked in A Night of Fright is No Delight, Scooby-Doo, Where Are You! makes a few background appearances on TV during episodes, particularly in one episode where a cursed Dean with no memory watches Scooby-Doo as a distraction set up by Sam and enjoys the show.
- When pressed by Dean, Daphne admits her attraction to Fred. Although hinted at in the original series, the concept of romance between Fred and Daphne was not openly explored until the movie series began in the late 1990s.
- On the episode The Thing of Supernatural, the next episode after Scoobynatural, Dean goes "jinkies" when finding a vital clue, earning him annoyance from Sam.
- The Ghost kid is not the first ghost to haunt the Men of Letters bunker on Supernatural. In the Supernatural episode Captives taking place about four years before Scoobynatural, the bunker was haunted by the ghost of Kevin Tran, a young man who resided there briefly and was murdered within. At the end of the episode, his ghost left with his mother. Kevin's ghost returned to the bunker briefly two years later in All in the Family and was sent to Heaven by God in front of the Winchesters.
- The concept that, to the Scooby Gang, ghosts and the supernatural are not real, is a major plot point in the episode, and when they do find out they are real, the characters suffer near-nervous breakdowns, forcing the Winchesters (with the aid of the ghost boy) to concoct a fiction to restore status quo. Later incarnations of the franchise, however, would have them encountering actual monsters.
- When first seen by the Winchesters, the Scooby Gang are dancing in front of a jukebox. Their style of dancing is a replication of the stock animation often used to show them dancing in the original series.
- When Castiel expresses surprise that they are dealing with a ghostly child, Dean tells him "creepy ghost kid. You get used to them." On Supernatural, several episodes feature creepy child ghosts with one in particular, a haunting at a Supernatural convention, featuring a man commenting on creepy children appearing so much in Supernatural moments before the ghostly children kill him. In the Supernatural episode The Foundry, the Winchesters investigate a house haunted by multiple child ghosts, one of whom they suspect of being the killer. The ghosts turn out to be the victims of the true villain, an adult ghost and aid the Winchesters in destroying the evil ghost which sets their souls free.
- When Castiel first appears, a flashback shows him arriving in the Men of Letters bunker with the Fruit of the Tree of Life. The Fruit plays an important role in season thirteen of Supernatural as it is one of four vital ingredients to a spell the Winchesters perform to open a portal to an alternate universe.
- "Ruh-roh" count: 1
- "Zoinks" count: 1
- "Jeepers" count: 1
- "Jinkies" count: 2
- Alan and Jay are named after former Warner Bros. Animation producer Alan Burnett and WBA executive Jay Bastian, respectively.
- When Sam and Dean get inside the malt shop, Sam calls Scooby "Marmaduke" which Dean finds offensive.
- Sam scoffs when Beauregard is referred to as "Colonel Sanders" (referencing the famous spokesman/mascot of Kentucky Fried Chicken); a similar joke involving a "Col. Sanders" character is heard in the film Spaceballs. On Supernatural, the Prince of Hell Asmodeus, a primary villain in the season Scoobynatural aired, was sometimes called "Evil Colonel Sanders" by Dean.
Animation mistakes and/or technical glitches
Inconsistencies/continuity errors and/or goofs/oddities
- In A Night of Fright is No Delight, the mansion is located on an island. In Scoobynatural, it is within driving distance of the Malt Shop for the Mystery Machine and Baby which race there.
- From an in-universe perspective, Scrappy's cameo makes little sense at this point (although Scrappy's Birthday would later retcon Scooby and Shaggy to have known him since birth). It was likely meant to be a joke or Easter egg since he only appears for a few seconds during the Scooby- Doo, Where Are You! theme song montage and is easily missed if not watched closely.
- The pep talk Dean gives the gang includes The Scooby-Doo Show monsters they had never faced at this point. Even if this is because the Winchesters have seen those episodes, the gang still don't bring it up as something they've never even seen before (though they could've been caught up in the trauma of the moment).
- Cuthbert Crawls never made an appearance.
- Cousin Maldahyde disappears from the narrative after Col. Sanders' message is played and is never referenced again.
- The style of animation used here is more in keeping with recent TV series and TV movies than the style used in 1969-70 when the original episode was produced. In particular, the art style for Daphne, Velma and Scooby differs from the original.
- While talking about the last time they were trapped in a TV show, Dean tells Sam that they got out by playing their parts. In actuality, they got out by trapping the being they knew as The Trickster at the time and forcing him to let them out. The Trickster, revealed as the Archangel Gabriel after being trapped, had put them into the TV show parodies to teach them to play their part which they did, but he didn't release them.
Sam Winchester: Hey Alan. Your friend here? He's been driving people off their property so he could buy it on the cheap. And he's been using his own personal ghost to do it. You see he'd plant a haunted object then let the ghost go to work.
Sam Winchester: Huh. Velma was right. It was a shady real estate developer after all.