Scooby-Doo and Guess Who?

When investigating a haunted, old hospital, Scooby-Doo and the gang meet up with actor and comedian Kristen Schaal. More importantly, can Kristen Schaal find out how she best fits into our group? So many fun choices -- so little time!

The gang heads to Nashville, Tennessee to meet up with none other than country music legend Kacey Musgraves! Can our gang of mystery solvers help save her show from the shadowy PHANTOM? Or, will it be the "final curtain" for all of them?!

Our mystery-solving gang is in Chicago investigating the haunting of a historic hot dog factory, when they team up with famous competitive-eater Joey Chestnut who's in town for the annual hot dog eating competition!

When Scooby-Doo and the gang are on the trail of a monstrous gargoyle in the nighttime city of Paris, they're stumped and need help with this mystery. Velma turns to close friend and famous fashion model Gigi Hadid that's in Paris for work.

When Shaggy and Scooby are excited to visit a scary haunted old castle in Germany, the rest of the gang are confused until they meet up with none other than famous chef, writer and TV presenter Alton Brown!

While investigating a mysterious ghost at the Dergfall Boldman Department Store -- a historic mecca of high fashion on 5th Avenue -- the gang bump into none other than fashion icon Tim Gunn! Can Tim Gunn solve the greatest mystery of all time?

When Scooby-Doo and the gang are in Austria for the International Ice Games, they meet up with none other than famous Olympic Gold Medalist and sports commentator, Tara Lipinski. Can Scooby-Doo complete a quadruple axe?

Hitting the ski slopes in the beautiful Rocky Mountains of Colorado, Scooby-Doo and the gang run into none other than American Gold Medalist and famous snowboarder, Chloe Kim and joins forces with our mystery solving gang.

When Scooby-Doo and the mystery solving gang wind up at the grand opening of a boxing museum created by none other than boxing great Laila Ali. Can the gang and Laila Ali go toe to toe with this metal menace and save the museum?

When Shaggy and Scooby meet up with their good friend Liza Koshy at an old haunted mansion, they find themselves the subject of her many fast-paced internet videos and at the center of a horrifying ghost attack!

When the gang gets a mysterious invitation to a baseball game they meet up with none other than rapper, songwriter Macklemore, who is getting attacked by a horrid and maniacal ghost mascot monster! Will our gang hit a home run?

Scooby and our mystery solving gang are on set with famous singer, dancer, comedian and actress Sandy Duncan. Can Sandy Duncan and our mystery solving gang survive this savage new Jekyll monster and solve the movie mystery?

Scooby-Doo and the gang, along with Morgan Freeman, are investigating mysterious ghost sightings at an old haunted prison that's been abandoned and derelict for over a hundred years.

Scooby-Doo and our gang of mystery solvers travel up a lost river in the Amazon Rainforest with famous comedian and actor Jason Sudeikis in search of a great treasure, the very first high-top sneaker ever made.

Scooby-Doo takes the gang to meet his good friend, Lucy Liu, at her art gallery in Queens, but when one of her large humanoid modern sculptures comes alive and attacks them, the gang and Lucy have a real mystery on their hands.

The gang and actor Sean Astin attempts at returning a lost set of keys quickly turns into a genuine mystery at a giant hardware store involving a terrifying force of nature: a monstrous green man!

Scooby-Doo and the gang are hitching a ride with their friend, Cher, on her yacht. When sharkmen start attacking the yacht, it's up to our gang to team up with Cher to get to the bottom of this murky mystery.

Fred takes a wrong turn at Nairobi and drives the gang to a lost valley at the base of Mount Kilimanjaro, where they meet Jessica Biel. When they get attacked by a monster gorilla, they soon have a serious mystery on their hands.

Our mystery teens work with Joseph "Run" Simmons -- aka Reverend Run -- originally of Run DMC to get to the bottom of the mystery of the ghost of a famous bandleader from the 1930s haunting a hip-hop youth center in Harlem.

Velma and Shaggy are contestants Jeopardy, competing against Andy the Brain Bot. When It threatens to destroy everything, our gang and Alex Trebek must get to the bottom of who's really behind this robot's dangerous actions.

Scooby-Doo and the gang arrive at a mountaintop cool school run by famous actor Billy Dee Williams. The gang loses their cool when an angry pterodactyl monster keeps attacking them and the school trying to scare everyone away.

Driving outside Shreveport, Louisiana, our gang of mystery solvers is run off the road by a shooting star that crashes down in the middle of the large ranch belonging to famous football hall of famer and TV sports host, Terry Bradshaw!

Scooby and Shaggy meet up with their biker buddy, Axl Rose, on a tour of famous roadside diners along iconic Route 66. However, they soon find themselves embroiled in a crazy mystery involving spooky mudmen.

When Daphne takes the rest of the gang to meet her friend, famous voice over actor Frank Welker, they inadvertently find themselves in the middle of a very strange mystery full of several different monsters and several different actors!