John Bring began as a writer's assistant who joined Supernatural in Season 9. Beginning with Season 12, Bring was promoted to staff writer.
- Writer Davy Perez has credited Bring for being the "Supernatural Bible" in the writers room. "He’s seriously a huge help with researching, or more often just knowing, all things Winchesters. I’ve binged my fair share, especially related to the topics I am attempting to tackle, but John is the Supernatural equivalent of Cliff Notes."