Scooby-Doo and Guess Who? - Series 1: 5. Ollie Ollie In-come Free!

NBA legend Chris Paul guest stars in the season premiere.

The gang come face to face with the ghost of Abraham Lincoln.

The gang hatch a monster egg with Wanda Sykes.

The gang team up with Sherlock Holmes in London.

The gang team up with Wonder Woman in Greece.

In Gotham City, Batman refuses the help of Mystery, Inc.

The gang meet Penn and Teller in a haunted hotel.

The gang save Weird Al Yankovic from a dinosaur.

Can the gang survive Steve Urkel and his Urkel-Bot?

Shaggy and Scooby meet Jim Gaffigan in an eating competition.

Bill Nye helps a trapped Neil Degrasse Tyson.

The gang find themselves in a mystery involving SIA and an evil demon ghost.

Whoopi Goldberg needs help at Psychic University.

The gang helps Kenan Thompson with a ghost clown!

The gang help Mark Hamill face a Fox Monster in Japan.

Barry Allen/The Flash helps the gang solve mysteries Flash-style.

The gang meet George Takei in a haunted Hollywood mansion.

Shaggy competes against singer Halsey in a poetry slam.

The gang team up with Steve Buscemi in Sicily.

The gang meet up with famous ventriloquists to stop a dummy.

Dancer Maddie Ziegler needs help with a haunted studio.

Jeff Foxworthy needs the gang's help with a witch.

Malcolm McDowell takes the gang on a trip through time.

The Hex Girls need Mystery, Inc for a cursed guitar.

The gang join Christian Slater to stop a wolfman.