Sara Tancredi, a former Fox River doctor fired for helping Michael. She is a former morphine addict. Her father, the governor, was killed by the Company for something they believed he had. Now, Sara wears the key to it around her neck, making her their next target. She’s compassionate, intelligent, and resilient, yet burdened by guilt and a quiet sense of responsibility for others’ pain. She remains capable and determined to do what’s right. She’s tall with brown eyes and short brown hair.