Tom

Tom was Azazel's Son and Meg's Brother.

Season 1
He first appears along with the demon "Meg" in an old factory to negotiate the handover of The Colt from John Winchester. Meg describes him as "less fun than me". When John hands over the gun, Tom promptly shoots Meg with it, much to her surprise; though she doesn't die, therefore proving that the gun was a fake. Furious, they both chase John out of the factory before being stopped behind a leaking pipe spilling holy water in their path. Tom catches John not long after, however, by telekinetically pinning him to a wall. He then takes John to the Sunrise hotel where he is possessed by Azazel as part of an ambush. Tom is later killed by Dean with the Colt whilst beating Sam almost to death. Azazel later refers to him as his "boy" and is angered by his death, punishing Dean heavily for it.