Dave Spector (alternatively known to some as Dali) is a man found in the White Desert. He stands in front of a tunnel. Killing him then entering the tunnel will grant the player access to one of two areas: Monoe's tunnel or one where white fires burn, arms and legs protrude from the ground, and severed heads spin in the sky.
File:Dave Spector.jpg
Fan art. Notice he resembles Dave Spector, a celebrity in Japan.
He and Seccom Masada-sensei are the only two characters that walk backwards in the game, as evidenced here at 0:51.