Richard Milhous "Dick" Dastardly is a fictional character and antagonist who appeared in various animated series by Hanna-Barbera Productions. Dastardly's most famous appearances are as a main character in the series Wacky Races (his initial appearance) and its spin-off, Dastardly and Muttley in Their Flying Machines. He is partly based on the English actor Terry-Thomas.
The character was voiced originally by Paul Winchell, then by Rob Paulsen and by Jim Cummings. Winchell's facial structures were caricatured in the related character design as well. In a live action version played by British actor Porter Flynn a prosthetic nose and chin were employed to replicate Dastardly's exaggerated features from the original cartoon. In the cartoons Dastardly would often utter his catchphrases, "Drat, drat and double drat!" or "Triple drat!" and even "Curses, foiled again!" His other main catchphrase was, "Muttley, do something!"