Bricktrons can be. Builders have the ability to use Stone Blocks for making full bricks, half-bricks, arch bricks, resource piles, ladders, barrels, torches, stairs and more. They also have the ability to use wood logs for making ladders, catapults, doors, planks, and supports.
The Builders are able to build quickly, but need stairs to build higher levels of castles or bridges. If Builders sense danger near them, they drop their materials and run away.
Little is known about classes in Castle Story.