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Scooby-Doo and Guess Who?
Scooby-Doo and Guess Who?
June 27, 2019 ~ October 1, 2021
Creator(s): Genre: Animated
Run Time: 22 minutes Network: Boomerang On Demand
Scooby: Frank Welker
Shaggy: Matthew Lillard
Freddie: Frank Welker
Daphne: Grey Griffin
Velma: Kate Micucci
Season: 1
Revenge of the Swamp Monster! June 27, 2019
Guest Star: Chris Paul
Shaggy is to caddy for Houston Rockets basketball player and bowling fan Chris Paul at a charity event to raise money for a struggling arts school. However, Mystery, Inc. will have to solve a mystery surrounding a swamp monster causing trouble for the tournament.

A Mystery Solving Gang Divided! July 2, 2019
Guest Star: Abraham Lincoln (Ghost)
Mystery Inc. receives a call from Chambersburg, a battlefield near Gettysburg, to investigate the myserious appearance of ghost zombie Civil War soldiers, only to bump into the The Funky Phantom crew. Although both mystery solving teams get into subsequent conflicts until the spirit of Abraham Lincoln suggests they should work together and save the mystery for last once and for all.

Peebles' Pet Shop of Terrible Terrors! July 11, 2019
Guest Star: Wanda Sykes
The gang meet Wanda Sykes at a pet shop, where a monster egg has hatched.

Elementary, My Dear Shaggy! July 18, 2019
Guest Star: Sherlock Holmes
On tour in London, the gang come across someone claiming to be none other than legendary detective Sherlock Holmes.

Ollie Ollie In-Come Free! July 25, 2019
Guest Star: Ricky Gervais
A mummy cat terrorizes Ricky Gervais' apartment.

The Scooby of a Thousand Faces! August 1, 2019
Guest Star: Wonder Woman
While visiting a Greek museum, the gang gets attacked by a Minotaur. Wonder Woman shows up to destroy the beast, but the gang convinces her to join them and see how they do things. Also, she and Scooby bond, which makes Shaggy jealous.

The Cursed Cabinet of Professor Madds Markson! August 8, 2019
Guest Star: Penn & Teller
Scooby-Doo and the gang team up with the legendary comedy magician duo Penn Jillette (aka Penn) and Teller to solve the mystery of a haunted Las Vegas casino hotel and win a million bucks for staying the night there.

When Urkel-Bots Go Bad! August 15, 2019
Guest Star: Steve Urkel
Scooby-Doo and The Mystery Inc. gang team up with Steve Urkel from Family Matters (1989) and use his latest invention, The Urkelbot, to locate a missing WWII treasure among the artifacts in a museum.

The Fastest Food Fiend! August 22, 2019
Guest Star: Jim Gaffigan
When Scooby and Shaggy compete in a fast food eating competition, they meet their ultimate challenge eating against none other than comedian Jim Gaffigan! Oh yeah, and there's also a monster trying to stop the contest from finishing.

Attack of the Weird Al-Osaurus! August 29, 2019
Guest Star: Weird Al Yankovic
Driving through the Rocky Mountains, the Mystery Inc. gang stumbles upon a stowaway, in the form of "Weird Al" Yankovic, who warns them about a horrible Allosaurus raining relentless destruction on his local accordion sleep away camp alongside another dinosaur.

Now You Sia, Now You Don't! September 5, 2019
Guest Star: Sia
In Palm Springs after Mystery Inc. receives a call from singer-songwriter Sia, she presents them a story involving an infamous jewel thief that has taken the shape of Sia as a ghostly doppelgänger that steals countless gems and jewelry, landing Sia in hot water under immediate house arrest.

Quit Clowning! September 12, 2019
Guest Star: Kenan Thompson
In Atlanta, Shaggy and Scooby take the gang to meet their good friend Kenan Thompson who is preparing to broadcast his very own telethon for the first time in history. When a Ghost Clown named Pazzo attacks, Mystery Inc. must help Thompson save the telethon.

What a Night, For a Dark Knight! September 19, 2019
Guest Star: Batman
After Daphne's "uncle" Alfred gets kidnapped by Man-Bat, it is up to Batman to get him back with a little help from Mystery Inc. While it was originally suspected that Kirk Langstrom became Man-Bat again, Batman discovers that he is still incarcerated at Arkham Asylum meaning that someone else is posing as Man-Bat.

The Nightmare Ghost of Psychic U! July 2, 2020
Guest Star: Whoopi Goldberg
While driving through snowy mountains, Mystery Inc. comes across a remote university where they meet Whoopi Goldberg who is a student at the university. Here, the gang must stop the university from closing before Whoopi can graduate, all while dealing with the Nightmare Ghost.

The Sword, The Fox, and the Scooby-Doo! July 2, 2020
Guest Star: Mark Hamill
While in Japan, the gang helps Mark Hamill rescue his old high school drama teacher who was kidnapped by a Fox Monster. Investigating the scene of the crime reveals a secret basement below the floor and the monster itself, who traps them under a pile of collapsing rubble. Hamill convinces Scooby to dig them out using a 'Jedi Mind trick', leading them straight into an underground tunnel and Fox Monster prints. The mystery only deepens when the monster's footprints lead to an old Japanese temple, rumored to house an ancient and valuable sword still hidden somewhere inside to this day.

One Minute Mysteries! July 2, 2020
Guest Star: Flash
Barry Allen wants to hang out with his favorite eating buddies Shaggy & Scooby at Big Belly Burger more often, but can't due to them always having to leave to help solve mysteries. Deciding to give the gang a little help as the Flash, he quickly steps on their toes by solving the mysteries too fast and incarcerating the villains at Iron Heights Penitentiary, which leads to mounting tensions amongst the group. Flash agrees to slow things down and run at 'normal speed', pretending to be in mortal danger while everyone else runs for their lives. Meanwhile in the background, a plot by a giant living teddy bear unfolds to force Flash to reveal his secret identity to the world.

Hollywood Knights! July 2, 2020
Guest Star: George Takei
The gang investigates a haunted estate belonging to deceased Hollywood Director Cecil D. Darrington (based on Cecil B. DeMille) at the request of George Takei who is currently serving as a tour guide. The house's true owner is currently unknown and is going to be seized by the government within a few weeks before being auctioned off to the highest bidder. To make matters worse, suits of armor are being brought to life by the Ghost Knight of Duke Doom-Bringer, eventually drawing out the house's rightful owner; the kooky and reclusive Darla Darrington.

The New York Underground! July 2, 2020
Guest Star: Halsey
Scooby surprises Shaggy by secretly entering him into a poetry slam against Halsey, with the winner being awarded an antique brass key to the city. The poetry slam is interrupted when a Gator Man Monster attacks, stealing the key and escaping with it, but not before an impression of the key is made into a burrito stuck to Scooby's stomach. Using the impression, they are able make a replica with a symbol on the key leading them to the mysterious New York Underground, a strange cafe where patrons pay for food with poetry, the Keeper of Knowledge, and the mysteries that lie beyond.

Fear of the Fire Beast! July 2, 2020
Guest Star: Steve Buscemi
Mystery Inc. is in Sicily tracking down a Fire Monster from Mount Etna that is apparently hunting Steve Buscemi, currently in the country visiting family. On top of this, everyone thinks he is a vicious gangster with Steve constantly trying to explain he's just an actor to no avail. In addition, he must also face and overcome his greatest fear....chipmunks!

Too Many Dummies! July 2, 2020
Guest Star: Jeff Dunham, Darci Lynne Farmer
Scooby and the gang are hired to deliver a creepy doll named Crazy Karl to a ventriloquist competition by the organizer of the event named Baz Bozzington. Jeff Dunham & Walter alongside Darci Lynne Farmer & Petunia are both attending as celebrity judges when Karl seemingly comes to life, attacking a nearby security guard. Complicating matters is the run down motel they are staying in where both the owner and her son want to make Petunia and Walter a permanent part of their doll collection.

Dance Matron of Mayhem! July 2, 2020
Guest Star: Maddie Ziegler
Maddie Ziegler has won a dance studio in a dance competition under the condition it be reopened or else the city will confiscate the property and demolish it to make way for a parking lot. Making things more difficult is the ghost of the previous owner, who died 30 years prior, wreaking havoc on the building preventing the studio from re-opening. Daphne is invited by Maddie during her latest attempt to re-open, but the gang arrive only to find the aftermath of the latest disaster. Maddie's only hope of appeasing the ghost is an impossibly complicated dance move called 'The Zorbrinski Triangle'; a move so difficult, only Madam Zorbrinski herself has ever done it.

The Wedding Witch of Wainsly Hall! July 2, 2020
Guest Star: Jeff Foxworthy
Jeff Foxworthy is hired as a truck driver to transport a house known as Wainsly Hall before a six lane interstate is built on top of the land, but is haunted by the Wedding Witch, preventing its removal. According to legend, it is the ghost of a woman who was left at the altar and whose depression and self-loathing supposedly caused her to turn into the witch.

A Run Cycle Through Time! July 2, 2020
Guest Star: Malcolm McDowell
At the request of Malcolm McDowell, the gang travel to his estate just outside Santa Barbara, California in order to help solve the mystery of the Chronobeast and why it's pursuing him. While filming a Hollywood movie about time travel decades prior, he became deeply interested in the theoretical physics behind actual time travel in real life, cracking the code after many years of research. He escorts them into his secret underground lab before showing off his time machine; made in the form of a pedal powered carousel featuring antique style 'Big Wheel' bicycles on the outer track. Velma barely has time to get a call from her future self before the Chronobeast is hot on their heels, leaving the time machine as their only route of escape.

I Put A Hex On You! July 2, 2020
Guest Star: The Hex Girls
A mysterious package from an anonymous fan arrives for Hex Girl Thorn containing the cursed guitar of Ester Moonkiller. Thorn decides to use it in their concert later that night in Cincinnati, having one of their roadies, Tiny, tune it in time for the show. Tuning and then playing said guitar causes Tiny to go Ballistic, trashing everything in site at Thorn's house, and later backstage at the concert. With Daphne doing their makeup, the gang is close at hand to help wrangle him in before being passed off by the Hex Girls as 'Rock and Roll'. The Ghost of Ester Moonkiller appears on stage to curse everyone at the concert, with both Thorn and Luna's personalities becoming polar opposites of their normal selves after playing the cursed guitar, threatening to end their careers.

The High School Wolfman's Musical Lament! July 2, 2020
Guest Star: Christian Slater
In a special Broadway musical like episode, Mystery Inc. are attacked by a werewolf jumping on top of the Mystery Machine, causing them to crash into the nearby Hudson river. Christian Slater sees them passing nearby, saw the logo on the van & winds up hiring them to track down said Werewolf; a Werewolf with a history. At Slater's original senior prom decades ago, the Werewolf attacked and destroyed it, thus prompting the makeup prom currently being held at his Alma Mater with the Werewolf looming yet again. As Mystery Inc. looks for the Werewolf, they must also contend with a mysterious woman with a past.

Space Station Scooby July 2, 2020
Guest Star: Neil deGrasse Tyson, Bill Nye
Velma and the gang are invited to help Bill Nye the Science Guy test his new experimental space voyager but things turn sour when they are met with only eerie silence and the missing crew of the multi-national space station. They follow the sound of uneven tapping to an electronically locked door with Bill & Velma recognizing it as Morse code. Using the tapped out message, Nye enters the code into the keypad opening the door to reveal Neil deGrasse Tyson. Quickly explaining the monster of the week, a giant Tardigrade (or water bear) appears shortly after, threatening not only the mission, but the entire station as well.

Season: 2
The Phantom, The Talking Dog, and the Hot Hot Hot Sauce! October 1, 2020
Guest Star: Kacey Musgraves
Daphne takes the gang to see her celebrity bestie Kacey Musgraves in Nashville where she is performing and a phantom is on the loose, attacking artists he does not like.

The Last Inmate! October 1, 2020
Guest Star: Morgan Freeman
Mystery Inc. together with Morgan Freeman investigate an old prison, abandoned for 100 years for purportedly being haunted by the Ghost of Jean Lebeau.

The Horrible Haunted Hospital of Dr. Phineas Phrag! October 1, 2020
Guest Star: Kristen Schaal
Mystery Inc. and Kristen Schaal investigate a haunted hospital with the ghost of a 1950s doctor named Phineas Phrag.

The Hot Dog Dog! October 1, 2020
Guest Star: Joey Chestnut
A tree monster called the Gnarled One attacks Shaggy and Scooby-Doo when they are at a hot dog eating contest with Joey Chestnut.

A Moveable Mystery! October 1, 2020
Guest Star: Gigi Hadid
While in Paris during Fashion Week, the gang helps model Gigi Hadid after a gargoyle attacks.

The Feast of Dr. Frankenfooder! October 1, 2020
Guest Star: Alton Brown
Shaggy and Scooby do the unexpected and welcome a visit to a haunted castle in Germany because famous chef Alton Brown will be there. They must also contend with a monster made by the known mad food scientist Dr. Frankenfooder.

A Fashion Nightmare! October 1, 2020
Guest Star: Tim Gunn
Mystery Inc. runs into Tim Gunn while investigating the sighting of an elevator operator ghost that is haunting the Dergfall Boldman Department Store.

Scooby on Ice! October 1, 2020
Guest Star: Tara Lipinski
Mystery Inc. heads to Austria for the International Ice Games, where they meet Olympic gold medalist and sports commentator Tara Lipinski. During this time, they must deal with a snow monster called the Snow Devil.

Caveman on the Half Pipe! October 1, 2020
Guest Star: Chloe Kim
A caveman scares up the slopes on the Rocky Mountains where Mystery Inc. meets gold medalist snowboarder Chloe Kim.

The Crown Jewel of Boxing! October 1, 2020
Guest Star: Laila Ali
A robot sabotages the opening of a boxing museum created by boxing pro Laila Ali.

The Internet on Haunted House Hill! October 1, 2020
Guest Star: Liza Koshy
Arriving at a haunted Thraber Estate, Shaggy and Scooby-Doo meet with their friend Liza Koshy. As they take part in Liza's fast-paced Internet videos, they must also contend with the attacks caused by the Ghost of Charles M. Thraber.

The 7th Inning Scare! October 1, 2020
Guest Star: Macklemore
A mysterious invitation to a baseball game allows a chance encounter between Mystery Inc. and rapper Macklemore, the latter of whom is being attacked by a ghostly mascot.

The Dreaded Remake of Jekyll & Hyde! October 1, 2020
Guest Star: Sandy Duncan
Sandy Duncan is making a new Jekyll and Hyde movie only for the set to be attacked by a real-life Hyde monster.

Total Jeopardy! November 13, 2020
Guest Star: Alex Trebek
Alex Trebek hosts a game of Jeopardy! featuring Velma and Shaggy competing against a robot named Max Kilobyte who goes on a rampage against anyone that looks like they might cause him to lose the game.

Dark Diner of Route 66! February 25, 2021
Guest Star: Axl Rose
When Fred, Daphne, and Velma are kidnapped by three Mud Men at a diner, Shaggy and Scooby must team up with Axl Rose to save their friends.

Lost Soles of Jungle River! October 1, 2021
Guest Star: Jason Sudeikis
Jason Sudeikis leads the gang on a treasure hunt through the Amazon rainforest where they meet a humanoid snake monster called El Hombre Serpiente.

The Tao of Scoob! October 1, 2021
Guest Star: Lucy Liu
A sculpture monster threatens to sabotage the opening of Lucy Liu's art show, so she enlists the gang's help.

Returning of the Key Ring! October 1, 2021
Guest Star: Sean Astin
The gang investigates a hardware store after a dinner with Sean Astin turns into an adventure to return a lost key ring. The gang quickly realizes that a plant monster is also after the key ring, and they must keep it from the creature at all costs.

Cher, Scooby and the Sargasso Sea! October 1, 2021
Guest Star: Cher
The gang celebrates Scooby-Doo's birthday on a yacht with Cher. Things become oddly familiar when a pair of shark men attack Cher's boat and the gang has to solve the mystery.

The Lost Mines of Kilimanjaro! October 1, 2021
Guest Star: Jessica Biel
The gang encounters a giant gorilla on a rampage while bumping into Jessica Biel in the jungle.

The Legend of the Gold Microphone! October 1, 2021
Guest Star: Joseph Simmons (Run-DMC)
Reverend Run needs the gang's help to renovate a youth center haunted by the spirits of two famous musicians.

Scooby-Doo and the Sky Town Cool School! October 1, 2021
Guest Star: Billy Dee Williams
Billy Dee Williams teaches the gang how to be cool at his "Cool School." When a pterodactyl suddenly appears, the gang and Billy have to stop the creature.

Falling Star Man! October 1, 2021
Guest Star: Terry Bradshaw
The gang helps Terry Bradshaw solve the mystery of an alien at his farm.

A Haunt of a Thousand Voices! October 1, 2021
Guest Star: Frank Welker, Grey DeLisle, Matthew Lillard and Kate Micucci
Daphne introduces the gang to her friend Frank Welker, and his friends Grey Griffin, Matthew Lillard and Kate Micucci, who are filming a television show about four mystery solving teens and a talking dog. Familiar monsters begin kidnapping the voice actors one by one, and the gang must devise a plan to rescue them.

Scooby-Doo, Dog Wonder! October 1, 2021
Guest Star: Blue Falcon and Dynomutt
When Blue Falcon is turned to stone by Medusa at an art museum, Scooby-Doo has to become Dog Wonder while Dynomutt takes Blue Falcon's place. Along with the rest of the gang, the duo have to stop Medusa in order to rescue Dynomutt's partner.

The Movieland Monsters! October 1, 2021
Guest Star: Carol Burnett
The gang tests out Carol Burnett's new virtual reality movie world, but things become far too realistic than they expected when a monster attempts to sabotage the simulations.