Mecha Mutt, a revolutionary remote-controlled lunar rover resembling a large canine, goes rogue at Houston's Annual Science Expo. Scooby-Doo! Mecha Mutt Menace is the fourth in a series of direct-to-video short films.
Frank Welker
as Scooby-Doo / Fred Jones (voice)
Matthew Lillard
as Shaggy Rogers (voice)
Grey DeLisle
as Daphne Blake (voice)
Mindy Cohn
as Velma Dinkley (voice)
Julie Bowen
as Dr. Devon Albright (voice)
Lacey Chabert
as Melanie Staples (voice)
Alan Rachins
as Dr. Ned Staples (voice)
Paul Reubens
as Irv (voice)
Phil LaMarr
as Stan (voice)