Gidney and Cloyd are fictional characters originally appearing in the American animated television program Rocky and His Friends (now known, along with The Bullwinkle Show, as The Rocky and Bullwinkle Show or simply Rocky and Bullwinkle). Their names were adapted from the names "Sidney" and "Floyd", which Jay Ward said were the most boring names ever. (Gidney is also an actual surname indigenous to New England and neighboring areas of Canada. is both an actual surname and a given name—see former major league baseball player Cloyd Boyer as well as current major league baseball player Tyler Cloyd.)
Gidney and Cloyd are "Moon Men", inhabitants of Earth's Moon. They are essentially humanoid, but are depicted as about half the height of the average adult Earth human. Although the narration of the series describes them as "green men," their color varies from scene to scene (including other colors such as orange, tan, and blue). Their skin has black spots, or in some scenes, circles. Their pudgy bodies are pear-shaped. Their onion-shaped heads are bald, save for tufts of hair at the very tops. They have no noses (Cloyd remarks that they have no sense of smell because of this) and they have no visible external ears. Cloyd displays a toothy smile; whatever mouth Gidney may have is concealed by a shaggy mustache. Cloyd wears a belt and holster for his scrootch gun (which has the power to immobilize its targets for a variable length of time). They are otherwise unclothed. Both Gidney and Cloyd possess the ability to disappear and reappear at will; they can disappear completely, but at times their eyes, and/or Cloyd's mouth, may remain visible (in the manner of the Cheshire cat's smile), though any equipment they carry, such as Cloyd's scrootch gun, remain visible even when they vanish fully.