Tobias Tibbs (or Mr. Tibbs) is a sadistic, psychopathic half-life that is part man, part rat. He is hated above all half-lifes by Galvin, as he kidnapped and killed Galvin's wife. In "Saving Grace", he attempts to kill the team by setting a bomb in the Stacks, which Ruby manages to disable. At the same time, he nearly drowns Luke and Galvin, but fails to do so when Ruby and Mina disable the water system. He is last seen watching the four smiters visiting Grace Brown's gravestone, then stalking off with a look of resentment on his face