Scooby-Doo! Mecha Mutt Menace Word Search Puzzle – Search Characters, Actors and Actresses. Word Search Puzzle Solver. 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. Find out the following actor, actress, character names, and other movie-related words hidden in this word search puzzle based on this movie.. This includes identifying and searching for words that are related to : Mindy Cohn, Julie Bowen, Phil LaMarr, Alan Rachins, Grey DeLisle, Paul Reubens, Frank Welker, Lacey Chabert, Matthew Lillard .