smallville justin hartley 'Smallville' alum heading to 'Castle'Justin Hartley has been keeping busy since “Smallville” went off the air. The actor recently popped up in an episode of NBC’s “Chuck,” and now we’ll be able to see him on another network.

Hartley will guest star in an upcoming episode of “Caslte,” TVLine reports. The man otherwise known as the Green Arrow will play the boyfriend of a reality TV celebutante in the 13th episode of Season 4, called “An Embarrassment of Bitches.”

We’re not sure what the case involves other than Hilarie Burton playing Kay Cappuccio, a Kardashian-like socialite who struggles with her fame, but knowing “Castle,” we’re sure it’ll be a funny take on reality TV stardom.

“Castle” returns with a new episode on Dec. 5. Episode 13 is scheduled to air in 2012.

Posted by:Jean Bentley