Dylan

Dylan is the son of Rob and Jane. He appears in the episode 99 Problems.

Background
Dylan is part of the town militia that saves Sam and Dean Winchester from demons at the beginning of the episode. He later participates in an attack on a nest of demons near the town, during which he saves Dean from a demon. Dean is grateful for his help and agrees to let him ride back to town with them in the Impala. Unfortunately, as they are sharing a beer, a lone demon hiding under the car grabs Dylan's legs and pulls him under. Sam and Dean kill the demon but are unable to save Dylan, whose throat has been slashed.

Season 5

 * 99 Problems