The Road Runner is the fast-running bird that repeatedly outsmarts Wile E. Coyote. Their chase is one of Looney Tunes’ most recognizable comedy pairings: the bird speeds across the desert while the coyote’s elaborate traps backfire.
The characters debuted together in Chuck Jones’s 1949 short “Fast and Furry-ous,” written by Michael Maltese. The Road Runner was inspired by the greater roadrunner, a real bird of the American Southwest. In the cartoons, his signature “Beep, Beep!” and astonishing speed make him almost impossible for Wile E. Coyote to catch.
Speedy Gonzales is another exceptionally fast Looney Tunes character, but he is a mouse, not the desert bird. Foghorn Leghorn is a rooster, and Tweety is a small canary. Those distinctions make Road Runner the single canonical answer.