Walrider

Agent

Vessel: Unknown

The Walrider, also known as The Swarm, is one of the main antagonists and the final enemy encountered in Marble Hornets. It is the source of the madness that seems to infect most of the town's inhabitants and the deity of The Order's religion and his followers.

While appearing ghostly in nature, the Walrider is actually a swarm of nanites; small, nanoscopic machines which collectively possess great strength and power. It took possession of Jeff. As it is shown by a document, when Jeff was undergoing Therapy, he learned to self-direct the lucid dream states, he was then capable of controlling the Walrider.