Supernatural Episode 2.05 Simon Said

Sam (Jared Padalecki) and Dean (Jensen Ackles) meet Andy (guest star Gabriel Tigerman), a slacker who has psychic powers of persuasion, which he uses to gain favors from people. However, when some of Andy's friends start dying, the brothers question whether Andy is using his powers to kill.

After learning that Andy's family was visited by the Demon 22 years ago, Sam wonders if Andy is part of the group of children the Demon told him about, and if that means he himself will eventually turn evil.