Scooby-Doo! Mecha Mutt Menace

In "Scooby-Doo! Mecha Mutt Menace," Frank Welker (Fred Jones and Scooby-Doo) and Matthew Lillard (Shaggy Rogers) join Grey DeLisle (Daphne Blake) as they team up with Mindy Cohn (Velma Dinkley), Julie Bowen (Dr. Devon Albright), Phil LaMarr (Stan, Mission Control), Lacey Chabert (Melanie Staples), Alan Rachins (Dr. Ned Staples), and Paul Reubens (Irv) to stop a rogue robotic dog, Mecha Mutt, at Houston's Annual Science Expo. The mystery unravels as the gang discovers that Melanie, daughter of NASA Scientist Ned Staples, was behind Mecha Mutt's rampage in an attempt to prove herself.