Gavin Miller is the illegal adoptive father of Heather Miller, who killed her biological mother Loretta Sawyer, by kicking her in the face broke her neck. He and his wife Arlene Miller were part of the lynch mob lead by Bart Hartman, which responsbile for the Sawyer Family's death. Gavin and his wife met their end at the hands of their daughter's cousin Leatherface at their mansion. Gavin is portrayed by David Born.