Robert Sippel

Robert Sippel is a supporting antagonist in the HBO drama Oz. He is a former priest convicted of molestation of a 14-year-old boy, making him arguably the most reviled inmate in the entire prison, .

After 10 years at Unit B, Robert Sippel is deemed eligible for parole. Governor James Devlin passes a law that says that sex offenders must report to the police before moving into a house. Father Ray Mukada says he is disgusted by Sippel. He is released, but he has nowhere to go, so he comes back to talk to Sister Peter Marie, asking if he can sleep in his old cell. Mukada regrets being rude to Sippel and hires him as his assistant.

While Sippel is in his cell, Aryan leader Vernon Schillinger says he is disgusted by what Sippel did, and the two get into a fight that the guards do nothing to stop. After meeting with the boy he abused, now an adult, Sippel is taken to the gym by Officer Karl Metzger, where Schillinger and the Aryans are waiting. They nail his hands and feet to the floor, leaving him literally crucified. Sippel is moved to a hospital and is never seen again.