Scooby-Doo and the Mystery Inc. gang team-up with various Hanna-Barbera characters to save the world from the evil Dick Dastardly.
Will Forte | Shaggy Rogers (voice) | |
Frank Welker | Scooby-Doo (voice) | |
Zac Efron | Fred Jones (voice) | |
Amanda Seyfried | Daphne Blake (voice) | |
Gina Rodriguez | Velma Dinkley (voice) | |
Tracy Morgan | Captain Caveman (voice) |
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