Seth Galecki

Seth Galecki is an 18-year old and twin brother to Hazel Galecki. He is portrayed by Matthew Eldridge.

He is an Anti-Hero in Teenagers Vs. The Horde.
 * Seth is the youngest twin to Hazel Galecki, being born a minute later.
 * Seth and Dylan do NOT get along as shown in film 1.
 * Due to Health Issues regarding to actor Matthew Eldridge, Eldridge had to leave the role of Seth Galecki.