Faultline is a young hero who can be found in the Rikti War Zone missions as member of Vanguard Shield. Named Jim Temblor, Faultline is the son of the villain of the same name who leveled Overbrook, and he's decided to restore the good name of his father. To learn more about his father's true history and ultimate doom, you should do the story arc in Overbrook (aka Faultline) that starts with Jim. Faultline is also the boyfriend of the heroine Fusionette and are often found in the same missions. He also knows the young but powerful psychic Penelope Yin.