Jebediah Morningside was a regular mortician. After putting many bodies into the ground, he began to wonder about the connection between our world and the world of the dead. Jebediah built a machine that enabled him to travel through time and space. After going through the portal, he came back through as The Tall Man.

Tall Man has many superhuman powers, such as superhuman strength, telekinesis, and many others. The Tall Man has been seen to lift a grown man with one hand, take away an object from a person's hand with his mind, etc. The Tall Man's signature weapon are flying spheres that conceal many weapons inside of them, such as drills, lasers, saws, and many more. The spheres contain the brains of the dead bodies that he crushes down into the zombie dwarves.