Klunk is a member of the Vulture Squadron on Dastardly & Muttley in Their Flying Machines and a racer on the 2017 Wacky Races. He was originally voiced by Don Messick, and is currently voiced by Jeff Bergman.
Though he is an expert aircraft mechanic, Klunk typically speaks in vocal sound effects which only Zilly can understand. Klunk is an inventive designer. Each episode sees him developing aircraft or weapons (often missiles which home on some bizarre trait, such as a person sneezing) with odd features and attachments designed to catch Yankee Doodle Pigeon. In "Vacation Trip Trap", Klunk became a leader of the squadron when Dick Dastardly went on holiday. In "Home Sweet Homing Pigeon", Klunk is left-handed and illiterate.