 Dick Dastardly was created as a foil for the 1968 Hanna-Barbera cartoon series Wacky Races, which was inspired by the film The Great Race from 1965, and later spun off Dastardly and Mutley in their Flying Machines, which was based on the 1965 film Those Magnificent Men in their Flying Machines. Dastardly was joined by his mostly faithful companion Mutley, who first appeared in prototypical form as the character of Mugger in the 1964 film Hey There, Yogi Bear, but made his first appearance via his finalized form, alongside Dastardly in Wacky Races. According to the original Wacky Races narrator, Mutley was a combination of bloodhound, pointer, and hunting dog. Dastardly aimed to win solely through cheating and trickery. His race car, named the Mean Machine, featured all sorts of devious traps for him to use against his opponents. Mutley doesn't really speak. His main examples of speech are his trademark snicker and asthmatic-sounding wheezing laugh, usually made at Dick's expense, and a mushy, sought-of-voice grumble against an unsympathetic or harsh dick, usually along the lines of Sessa, Fressa, Rassam, Rick, Rastardly. Mutley had a near clone in Scooby's Laugh Olympics by the name of Dread Baron. Due to the similarities between the two, Brazilian translators mistook the Baron for Dastardly. The Dread Baron worked alongside the dog Mumbly, who was nearly identical to Mutley. According to Marvel Comics, which published for Hanna-Barbera, the Dread Baron and Dick Dastardly were actually brothers. Alongside his appearance in Laugh Olympics, Mumbly also appeared in his own series where he was a detective inspired by the Peter Falk character, Colombo, and was the team captain for the team, the Really Rotten's, in the Laugh Olympics. Eventually, Dick Dastardly and Mutley became the nemesis of Yogi Bear in the series Yogi's Treasure Hunt from 1980. After this, they appeared in the Fenderbender 500 shorts in the 1990 series Wake, Rattle and Roll, and then went on to appear as teenagers in Yogi. The character of Dick Dastardly has been voiced by Paul Winchell, Michael Bell, Rob Paulson, Jim Cummings, Eric Baza, Peter Woodward, Tom Kenny, Jason Isaacs, and Richard McGonagall. The character of Mutley has been voiced by Don Messick, Scott Inns, Billy West, Jeff Bergman, Joe Alasky, and Mark Silk. Mumbly has also been voiced by Don Messick, while John Stevenson voiced the Dread Baron. Mutley and Dastardly both made appearances in the recent Scoob movie, where Mutley was once again voiced by Billy West, while his archival snickering was provided by the late Don Messick. On a personal note, the Mutley-Mumbly characters have always been among my favorite in the Hanna-Barbera-Shared universe.