Driving through the Rocky Mountains, the Mystery Inc. gang discovers a stowaway in the form of "Weird Al" Yankovic. He warns them about a horrible Allosaurus raining relentless destruction on a local accordion sleep away camp.
Guest Cast
Weird Al Yankovic
voices Himself
Kevin Michael Richardson
voices Big Bob
Grey DeLisle Griffin
voices Dr. Tuttle
Frank Welker
voices Pete # 2
Kevin Michael Richardson
voices Pete # 1Cast Appearances
Frank Welker
voices Fred Jones
Frank Welker
voices Scooby-Doo
Grey DeLisle Griffin
voices Daphne Blake
Matthew Lillard
voices Shaggy Rogers
Kate Micucci
voices Velma DinkleyEpisode Discussion
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