Scooby-Doo! and Kiss: Rock and Roll Mystery

Fred, Daphne, Velma, Shaggy and Scooby-Doo travel to an amusement park called Kiss World to see Kiss at their big Halloween concert and solve a mystery, mostly because Daphne has a crush on Starchild (Paul Stanley), much to Fred's jealousy. However, when the gang arrive, security chief and former government defense employee Delilah Domino refuse to let them in, so they sneak in and are caught by Delilah. At that moment, Kiss arrives, and after the gang explains they are there to help, they tell Delilah the kids are free to stay, to which she reluctantly agrees. The Demon (Gene Simmons) initially opposes the idea due to Scooby accidentally spraying a water gun on him when he came to Shaggy and Scooby for a surprise visit, but later relents. As the gang split up for clues, Shaggy and Scooby are chased by an entity; Kiss comes to their aid. They tell the gang the entity is called the Crimson Witch, and she has been terrorizing the park for a while, and they need her to disappear before the concert.

A strange, perpetually barefoot fortune-teller named Chikara says the witch is from an alternate universe called Kissteria and plans to use the Black Diamond Kiss uses in their hit song "Detroit Rock City" to summon a monster called The Destroyer to conquer the Earth, which Velma finds hard to believe. To stop the Crimson Witch, the gang uses the diamond to lure the witch. However, the Crimson Witch chases them through a portal to Kissteria. She manages to steal the diamond and unleash The Destroyer, but the gang and Kiss arrive in a spaceship to stop the monster. The gang then returns to Earth, where they wake up believing the witch's gas caused them all to have a hallucination. They unmask the Crimson Witch as Delilah, who wished to sell the Black Diamond (needed for laser technology) to a competing defense company as revenge against her former employers.

Later, the Starchild kisses Daphne right in front of Fred. Daphne then kisses Fred on the cheek, much to his delight. The Demon gives Shaggy and Scooby a smile. Shaggy and Scooby then see Kiss fly away with the black diamond. Shaggy asks Scooby if they should tell Velma about what they saw. However, Scooby suggests they do not, stating: "why rock her world?"

KISS

• Paul Stanley as The Starchild
• Gene Simmons as The Demon
• Tommy Thayer as The Spaceman
• Eric Singer as The Catman

Scooby-Doo

• Frank Welker as Fred Jones and Scooby-Doo
• Matthew Lillard as Shaggy Rogers
• Grey DeLisle as Daphne Blake
• Mindy Cohn as Velma Dinkley

Other

• Jennifer Carpenter as Chikara
• Garry Marshall as Manny Goldman
• Penny Marshall as The Elder
• Doc McGhee as Chip McGhoo
• Jason Mewes as Worker #1
• Pauley Perrette (in her last film appearance) as Delilah Domino, The Crimson Witch
• Rachel Ramras as Shandi Strutter
• Darius Rucker as The Destroyer
• Kevin Smith as Worker #2
• Tony Cervone as The Announcer

All of the songs featured in this film are made by Kiss, including the one new song made for the picture, "Don't Touch My Ascot".

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• Scooby-Doo! and Kiss: Rock and Roll Mystery at IMDb