Yes, Robert Buckley is joining the cast of One Tree Hill, taking over a role originally rumored for Brian Austin Green.

But The CW didn't forget about Green, as we can now confirm that he's set to appear on Smallville this fall.

According to various sources, such as TV Guide and Entertainment Weekly, the actor has been cast as the DC Comics villain Metallo.

The former Beverly Hills, 90210 star will appear as the kryptonite-powered villain in at least the first two episodes of next season, which kick off on a new day of the week: Friday, September 25.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.