John Roberts
AGE: 52
OCCUPATION: Chief Justice of the Supreme Court of the United States
NUMBER OF TIME COVERS: 0
PREVIOUS APPEARANCES ON THE TIME 100: 1
PRO: Conservative who pushes for unanimity with the other 8 justices in court decisions and views the role of a judge as an umpire: "Umpires don't make the rules," he has said, "they apply them."
CON: The Court is now more divided than ever, and Roberts has been accused of swinging it farther towards the right.