Daniel Sunjata (Andrew Jenkins) played a nurse in Greys Anatomy (2005), he was a doctor until he was caught. He also played a criminal, Mecca, in a Power spin off, Power Book II: Ghost (2020).
When talking to the serial rapist to learn the identity of the copy cat, Lightman questions him about his education, specifically "flunking out after one semester at Southern Iowa State". However, while there is an Iowa State University there is no school named Southern Iowa State.