- Dean Winchester (1979)
- Jessica Moore (1984)
While many fans developed intricate theories as to the significance of Jess and Dean sharing a birthday, Eric Kripke has stated that he chose the date because it is his wife's birthday.
- Sam Winchester(1983)
In a bizarre coincidence, Eric Kripke's son was also born on this date in 2007.
- Mary Campbell makes a deal with Azazel (1973)
- Sam Winchester dies. Dean Winchester makes a deal to bring him back (2007)
- Dean Winchester's deal is up. He dies (2008)
- Adam Milligan(1990)
This day is also the traditional day for Michaelmas, the feast of Saint Michael the Archangel, for whom Adam eventually served as a vessel.
Sam Winchester is six months old on this day.
The events at the end of 1.22 Devil's Trap occur on this day.