The Garthim are robust armored creatures which serve as guards and soldiers to their masters, the Skeksis. Their appearance is reminiscent of a huge beetle or land crab, and they appear to be artificially created, since after the destruction of their masters the Garthim bodies simply fall apart, revealing a hollowed interior. It is possible that they represent the remains of some creature drained of its life essence to serve the Skeksis, but their true origins are not known.