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A cosmic case of flying saucers, intergalactic intrigue and out-of-this-world romance launches Scooby-Doo! and the Mystery Inc., Gang into their most unearthly adventure ever.
as Scooby Doo / Shaggy (voice)
as Daphne Blake (voice)
as Velma Dinkley (voice)
as Fred Jones (voice)
as Crystal / Amber (voice)
as Sergio / Buck (voice)
as Dottie (voice)
as Lester (voice)
as Laura (voice)
as Steve (voice)
as Max (voice)
