Gravel is Rubble's son. He is a male construction pup, just like his father. He is voiced by Corbin Bleu in the upcoming spin off "Pup Cadets".
Gravel is one tough guy, but can also be a real softie at heart. He can be emotional at times and is very soft for small animals. Sometimes he can complain if things went wrong, but in the end, he listens to his friends.
Gravel is an English Bulldog pup, like his dad. He has tan fur with a white belly that also covers most of his face with white fur. He has green eyes.
"Gravel on the Double!"
"Dad, check this out!" (showing Rubble some cool tricks)