2008年的万圣节，史酷比和伙伴们又遭遇新困境！当史酷比和朋友们及美丽的公主正准备万圣节派对时，他们遇到了万圣节恶魔——臭名昭著的无头骑士。这一次，胆小而又为友谊充满勇气的史酷比该如何应对恶魔的挑战呢……
Frank Welker
Scooby-Doo / Fred Jones (voice)
Casey Kasem
Shaggy Rogers (voice)
Grey DeLisle
Daphne Blake / Cat Witch / Honeybee (voice)
Mindy Cohn
Velma Dinkley (voice)
Lauren Bacall
The Grand Witch (voice)
Tim Curry
The Goblin King (voice)
Jim Belushi
Glob (voice)
Wayne Knight
The Amazing Krudsky (voice)
Wallace Shawn
Mr. Gibbles (voice)
Hayden Panettiere
Fairy Princess Willow (voice)
Larry Joe Campbell
Glum (voice)
Jay Leno
Jack O'Lantern (voice)
Thom Adcox-Hernandez
Sparkplug (voice)
Russi Taylor
Owl Witch / Tiddlywink (voice)
