Baby Road Runner is a toddler version of the original Roadrunner, and one of the minor characters from the show. He gets chased by Baby Wile E.
- He made a cameo in "Are We There, Yet?" where he was seen with Baby Wile E. chasing him. The rest were songs.
Minor: Baby Pepe • Baby Marvin • Puppy K-9 • Baby Elmer • Baby Foghorn • Puppy Barnyard • Baby Porky • Baby Wile E. • Baby Road Runner • Baby Gossamer • Baby Duck Dodgers • Baby Instant Martians • Puppy Marc Antony • Baby Sam