Steve Hadley (portrayed by Bradley Whitford) was a main character in The Cabin in the Woods. He was a member of the secretive Organization that was dedicated to appeasing the Ancient Ones by sacrificing young lives to maintain the evil gods' slumber. He and his associate Sitterson oversee the Facility's ritual and organize the various devices, chemicals and creatures to be used.
Dana Polk and her friends discover the cabin's basement which contains a number of bizzare items and artifacts. Hadley and the Facility staff then select what creatures to use to kill the victims with based on what objects they handled in the basement. Since Dana read the diary of Ann Patience Buckner aloud, Hadley released the "Zombie Redneck Torture Family" into the woods to kill the teens. Hadley was disappointed by this as he wanted to see the teens get killed by a merman.
One by one, Dana's friends were killed until she was the only one left. As the zombified Father Buckner attempted to kill Dana by the lake, Hadley and his staff prematurely celebrated another successful ritual, unaware that Marty Mikalski was still alive. Marty saved Dana from the zombie and led her back towards the cabin, pointing her towards an open grave outside the house. The grave was actually a delivery compartment for the elevator that brought the zombies up to the surface. Dana and Marty took the elevator down into the Facility where they saw all sorts of monsters in their pens. Hadley ordered a group of security guards to intercept the survivors and kill them so that the ritual could be completed, but Dana and Marty took cover inside a control booth. Inside, Dana pushed a large red button marked "System Purge". This opened all of the pens and released the monsters into the Facility where they killed everyone in sight.
Death[]
As the monsters ran amok inside the Facility, Hadley, Sitterson and Lin were trapped in the control room. Eventually, the nightmare horde breached the control room and a group of scarecrows lynched Truman, who blew himself up with a grenade. Knocked back by the explosion, Hadley was wounded and struggled to get up. Ironically, the merman creature that he had wanted to see kill the teens was crawling its way over to him. Hadley had seconds to curse his luck before the merman clambered on top of him and started eating his face.