Who'd have guessed it would be so difficult to keep up with the career path of The Notorious B.A.G.?

In the space of two months, Brian Austin Green has gone from the now-deceased "Terminator: The Sarah Connor Chronicles" to the unordered CW pilot "Body Politic" to a brief flirtation with The CW's "One Tree Hill" only to end up with a multi-episode arc on The CW's "Smallville."

According to TVGuide.com, Green has signed on to appear in at least the first two episodes of the ninth season of "Smallville" playing supervillain Metallo. As DC Comics fans know, Metallo has a suit of kryptonite-powered arm, which is the sort of thing that causes no end of problems for Superman.

Metallo's original alter ego, and the version "Smallville" seems to be planning, is Daily Planet reporter and budding criminal John Corben, nearly killed after an attempted murder and fused with a robotic body. Or something to that effect. Some fans have said that the original "Terminator" owed a debt to Metallo, which makes Green's casting mighty appropriate.

The CW announced its fall premiere schedule this week, including the return of "Smallville," in its new Friday digs, on September 25. Here's hoping the Friday 8 p.m. timeslot is luckier for Green on "Smallville" than it was on "Terminator: The Sarah Connor Chronicles." 

Clayton, the "One Tree Hill" role originally earmarked for Green, went to Robert Buckley.