Sisyphus

A vicious and impious king, known for his craftiness. He often killed travelers at a whim, and was deceitful to others. Zeus ordered Thanatos to chain Sisyphus in Tartarus, but Sisyphus tricked Thanatos into chaining himself up and escaped. Ares eventually freed Thanatos and turned Sisyphus over to him. As punishment, Sisyphus was taken to the Underworld and forced to forever push a boulder to the top of a hill, only for it to always roll back to the bottom and force him to start over.