Cannonbolt is a hulking, broad-shouldered alien covered in natural armor plating on its back, shoulders, and the backs of his arms. This armor can withstand acids, lasers, and even a g-force drop from space without any harm to the subject. Cannonbolt can roll into a ball like an armadillo or pillbug to encase itself in this plating. There is enough space within the shell while rolled up to protect and transport people or objects.
In John Smith 10, he has his UAF appearance until Omniverse, where he gains his Omniverse appearance.
In Jane Smith 10, she has the Omniverse appearance, with pink eyes.
The Dimension 30 version has brown skin instead of white, and brown eyes.
For his appearance in Dimension 23, see Bowl Man below.
Bowl Man is the version of Cannonbolt in Dimension 23. He is used by Protoman. Bowl Man has dark grey skin and red armor instead of yellow. He has yet to display any fighting styles using Protoman's Shield.