Cannonball is third officer on the Shortcut. Although his real name is Joe Shooter, he goes by his nickname Cannonball. He is introduced in The Perilous Journey.


Cannonball has a brilliant personality with a fabulous sense of humor. He likes the children and Captain Phil Noland. He also shares the thought along with Nolan that the rich Mr. Pressius, and all the businessmen are "bullfrogs." He has a very adventurous spirit much like Kate and is also known to be extremely kind such as when he took care of Madge for Kate.