Erasmus Rayne is a cult killer and former inmate at Arkham Asylum.
At some point, Erasmus Rayne was captured by the GCPD and imprisoned at Arkham Asylum for his crimes. However, he was later able to escape custody when Jerome Valeska, Jervis Tetch and Jonathan Crane caused an outbreak that freed a total of 87 criminals from the violent ward of the asylum.
- "A Dark Knight: One of My Three Soups" (mentioned)
- In the DC Comics, Erasmus Rayne aka Death Rattle was a cult leader and serial killer. He was a self-proclaimed psychic and founder of his own religion, completely amoral and wildly unpredictable. Rayne was convinced he could commune with the dead, and listened when the voices in his head told him to kill 56 members of his own ministry. He was imprisoned within Arkham Asylum, where he later died during a attack by demons and ghosts who told him he had to throw himself into the fires and sacrifice himself, which he willingly did. Erasmus Rayne first appeared in Arkham Asylum: Living Hell #1 (July 2003) and was created by artist Ryan Sook and writer Dan Slott.