The hunter from Louisiana is wearing a Guidry's shirt. This is the restaurant Benny the Vampire worked at when Dean and he returned from purgatory.
Kett Turton was in season 1's "Phantom Traveler." He played one of the survivors of the plane crash.
Kett Turton, the actor who plays Alton in this episode, has also guest starred on iZombie as a character who calls himself Vampire Steve, though he isn't an actual vampire. Aaron Douglas, who plays the hunter Pierce, has also guest starred on iZombie.
In this episode, actors Kett Turton and Aaron Douglas have both starred in the CW series The Flash.