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.
Crystal / Amber (voice)
Sergio / Buck (voice)
Dottie (voice)
Daphne Blake (voice)
Velma Dinkley (voice)
Lester (voice)
Laura (voice)
Fred Jones (voice)
Scooby Doo / Shaggy (voice)
Steve (voice)
Max (voice)