Wie alt waren die Schauspieler in The Hitcher (2007)?

While driving through the New Mexico Desert during a rainy night, college students Jim Halsey and his girlfriend Grace Andrews give a ride to a hitchhiker. While in their car, the stranger proves to be a psychopath threatening the young couple with a knife, but Jim successfully throws him out of the car. This sets off a chain of events that will change all of their lives forever.