Scooby-Doo and Guess Who?

While driving through snowy mountains, Mystery Inc. comes across a remote university where they meet Whoopi Goldberg, who is a student at the university.

While in Japan, the gang run into Mark Hamill, who's having a class reunion. A mystery presents itself when a fox monster kidnaps one of Hamill's old teachers.

Shaggy and Scooby try to find some time to eat with their pal Barry Allen (aka the Flash).

Mystery Inc. meet George Takei while exploring the Hollywood Hills' most haunted historic building. While there, they also run into a ghostly knight.

Scooby enters Shaggy in a poetry slam at Central Park, where his competitor is singer-songwriter Halsey.

When Scooby and the gang are in Sicily, they’re chasing a fire monster! They're surprised to meet up with famous actor Steve Buscemi. His ancestors are from this area, and he has a lot of cousins in town and was just visiting.

When Scooby and the gang are hired to escort a possessed ventriloquist dummy, they meet up with the two judges of the competition, Jeff Dunham and Darci Lynne Farmer and the possessed dummy attacks the competition.

When famous dancer Maddie Ziegler wins an old, haunted dance studio in a competition, she asks her friend Daphne Blake and her mystery solving friends to help her investigate the place.

Scooby and our gang of mystery solving teens have been invited by famous comedian Jeff Foxworthy to help him move an old mansion that he’s just purchased. But, they find out the mansion is haunted by the ghost of an old witch.

Malcolm McDowell has made time travel possible, so he takes the gang along into the past, but an accident causes them to go into a nightmare future.

When Daphne’s makeup vlog lands her as the prime consultant to the famous rock band, the Hex Girls, our gang find themselves embroiled in a rockin' mystery involving a cursed guitar that seems to control people's minds.

When the gang teams up with Christian Slater, they find themselves at a redo prom for Christian's classmates to make up for the one they were deprived of when a horrible Wolfman appeared all those years ago.

When Neil deGrasse Tyson gets trapped on the International Space Station with a horrible monster, Bill Nye arrives to save his good friend with the help of Velma and our mystery solving gang.