Hmmm, could heroine Sarah Connor be getting a new villain already? That's the way it appears, anyway, thanks to a new casting notice that's gone out today concerning the midseason drama The Sarah Connor Chronicles . The FOX actioner, a weekly TV spin-off of the Terminator franchise, has secured the talents of Garret Dillahunt ( Deadwood ) as a character named Cromartie, a substitute teacher at the high school where John Connor attends. And, oh yeah, SPOILER ALERT time: the "mysterious" Cromartie is a Terminator unit send back in time to kill Sarah (Lena Headey) and John Connor (Thomas Dekker). Dillahunt is no stranger to playing a time-displaced villain; after all, he played the Machiavellian Matthew Ross on The 4400 for 11 episodes. What's the problem? Well, in the pilot that had been shot for Sarah Connor Chronicles , Cromartie was played by The Nine 's Owain Yeoman and I actually thought he did an admirable job, considering the pilot itself was rather dic