Cast (12)
Frank WelkerScooby-Doo / Fred Jones (voice)
Matthew LillardShaggy Rogers (voice)
Grey DeLisleDaphne Blake (voice)
Mindy CohnVelma Dinkley (voice)
Mark HamillZip Elvin (voice)
Diedrich BaderH.A.M. (voice)
Malcolm McDowellSly Baron (voice)
Fred TatascioreHudson Baron / Alien (voice)
Jennifer HaleShannon Lucas / Ridley / Launch Manager (voice)
Jeff BennettColt Steelcase (voice)
Kevin Michael RichardsonUvinous "U-Boat" Botango / Drake (voice)
Eric BauzaClark Sporkman (voice)