"Even Seth knew that and he used to point at planes."
William Herrick

Seth was a vampire henchman of Herrick.

He and Mitchell know each other but never get on. He seems intimidated by Mitchell at times and resorts to taunts to be seen as superior. Seth and his vampire friends Turlow and Marco beat up George two years ago when George and Mitchell first meet. Seth is killed by Lauren with a stake through his heart in "Episode 1.5" when he is about to attack a cornered Mitchell, George and Annie in the vampire headquarters funeral home. He appears as an antagonist to George, as Herrick does to Mitchell, victimising him more than other vampires.

There are hints that Seth might be the Highgate Vampire.

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