Gordon Walker

Gordon Walker was a hunter that primarily went after vampires, more than anything else.

Background
When Gordon was almost 18, a vampire broke into his home and attacked his sister. In the fight, Gordon was knocked unconscious. When he woke, his sister and the vampire were gone. He ran away from home, learning how to find, fight and kill vampires. He killed the vampire who attacked his sister, and also killed his sister who had been turned into a vampire.

Season 2
When Dean Winchester and Sam Winchester first met him in an ally then later on they save Gordon life and Dean starts to warm up to Gordon because they are both hunters. Gordon sister wasn't killed by a vampire instead she was turned into one so Gordon hunted down his sister and killed her.

He later returns in "Hunted".

Season 3
In "Fresh Blood", Gordon is captured by a vampire and turned into a vampire himself. Later, Sam kills him by decapitation.

Season 2

 * "Bloodlust"
 * "Hunted"

Season 3

 * "Bad Day at Black Rock"
 * "Fresh Blood"

Trivia

 * He drives a red car with Michigan plates : TRI 208
 * Has met John Winchester
 * Used to frequent the Roadhouse around 2000-2001. Had some conflict with Jo and Ellen, see Jo's Journal for more details.
 * Gordon keeps a hunter's journal
 * According to series creator, Eric Kripke, Sterling K. Brown was supposed to stay for more episodes but couldn't due to him being contracted for Lifetime. After Season 2, Lifetime allowed Sterling to Guest Star in 2 more episodes.