Matthew Buckner is the oldest son of The Buckner Family and the most malicious among them.
From his little sister's diary, one can see that he takes the greatest pleasure in torturing and murdering people, for she describes him as becoming sexually aroused from doing so. He is responsible for the murder of his little brother Judah in the name of the family's pain-worshipping faith, and it is said that even his father was careful not to cross him.
He is responsible for the murder of Jules Louden and viciously beats Dana Polk before she is saved by Marty Mikalski. He also uses his weapon of choice, a broken bear trap attached to a chain, which he uses as a flail, to kill Holden McCrea and Curt Vaughan.