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). Their names were adapted from the names "Sidney" and "Floyd", which Jay Ward said were the most boring names ever.
Gidney and Cloyd are both "Moon Men", inhabitants of Earth's Moon. They are essentially anthropomorphic but are shorter than most humans. Their skin is green with black spots and they have tufts of hair on the tops of their heads; they appear to be unclothed. They are able to disappear and reappear at will; they can disappear completely but sometimes their eyes remain visible (like the Cheshire cat's smile). Physically, they are nearly identical, although Gidney has a mustache, while Cloyd wears a belt and holster for his scrootch gun. The scrootch gun has the power to immobilize its targets for a variable length of time.
The Moon Men appeared in Jet Fuel Formula, the first Rocky and Bullwinkle story arc, broadcast 1959-1960. In this story they come to Earth in an attempt to thwart a rush of tourists to the Moon, only to become media celebrities themselves. They initially succumb to the temptations of fame but soon tire of it. With the help of Rocky and Bullwinkle they are eventually able to get home.