Fan Casting Sheemie in Ron Howard's Dark Tower: The Gunslinger

The most powerful of the Breakers, a young boy with dark hair who is first among equals in the psychic assault on the Dark Tower. Sheemie resists Walter's control as best he can, mouthing the words "Fight it" to Jake across the room, but his power is too immense for him to control. His energy pours from him like light, streaming into the growing bolus of power that threatens to shatter the universe. He is a tragedy of good intentions, crushed by forces beyond his understanding.