Supernatural television series has been aired for 15 seasons since it was first aired in 2005.
The full name of the main character, Sam Winchester, is Samuel William Winchester.
Jared Padalecki, the cast of Sam Winchester, initially auditioned for the role of Dean Winchester before finally being given the role of Sam.
Jensen Ackles, actor Dean Winchester, was once a model for the brand of swimsuit and underwear, Mr. Texas.
Each supernatural episode begins with the sentence The Road So Far spoken by the character Bobby Singer.
Crowley's character, King of the Devil, was originally only used as a temporary character for several episodes, but then became a character that appeared regularly until the end of the series.
Each supernatural episode has a title taken from the name of the song or quote from the literature, film, or TV.
Charlie Bradbury's character, a hacker who is a close friend of Sam and Dean, has a last name taken from the famous science fiction writer, Ray Bradbury.
Supernatural writers often take inspiration from urban myths and legends around the world for the plot of their episode.
Actor Misha Collins, who played the Castiel character, was originally only used as a guest character in several episodes, but then became a character that appeared regularly until the end of the series.
